Merge remote-tracking branch 'origin/main' into prsync/7407

fix(auth): remove signup page from self-hosted builds (#7406 )
# Description of Changes remove signup page from self-hosted builds since all signups are either default or done via admins --- ## Checklist ### General - [ ] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [ ] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md) (if applicable) - [ ] I have read the [How to add new languages to Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md) (if applicable) - [ ] I have performed a self-review of my own code - [ ] My changes generate no new warnings ### Documentation - [ ] I have updated relevant docs on [Stirling-PDF's doc repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/) (if functionality has heavily changed) - [ ] I have read the section [Add New Translation Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags) (for new translation tags only) ### Translations (if applicable) - [ ] I ran [`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md) ### UI Changes (if applicable) - [ ] Screenshots or videos demonstrating the UI changes are attached (e.g., as comments or direct attachments in the PR) ### Testing (if applicable) - [ ] I have run `task check` to verify linters, typechecks, and tests pass - [ ] I have tested my changes locally. Refer to the [Testing Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing) for more details.
2026-09-03 05:10:16 +03:00 · 2026-08-11 12:11:56 +01:00 · 2026-08-11 10:16:28 +00:00 · 2026-08-11 08:09:21 +00:00 · 2026-08-10 16:55:34 +00:00 · 2026-08-10 16:45:13 +00:00
897 changed files with 116707 additions and 45545 deletions
@@ -119,8 +119,6 @@
            "extensions": [
                "elagil.pre-commit-helper", // Support for pre-commit hooks to enforce code quality
                "josevseb.google-java-format-for-vs-code", // Google Java code formatter to follow the Google Java Style Guide
-                "ms-python.black-formatter", // Python code formatter using Black
-                "ms-python.flake8", // Flake8 linter for Python to enforce code quality
                "ms-python.python", // Official Microsoft Python extension with IntelliSense, debugging, and Jupyter support
                "ms-vscode-remote.vscode-remote-extensionpack", // Remote Development Pack for SSH, WSL, and Containers
                // "Oracle.oracle-java", // Oracle Java extension with additional features for Java development
@@ -1,18 +1,28 @@
-# All PRs must be approved by Frooodle or Ludy87
-* @Frooodle @Ludy87 @jbrunton96 @ConnorYoh
+# Review ownership is assigned to teams where possible.
+# Teams can only contain org members, so outside collaborators are listed by hand.
+#
+#   @Stirling-Tools/maintainers          - Frooodle, jbrunton96, ConnorYoh
+#   @Stirling-Tools/backend-reviewers    - Frooodle, jbrunton96, ConnorYoh
+#   @Stirling-Tools/frontend-reviewers   - Frooodle, jbrunton96, ConnorYoh, reecebrowne, EthanHealy01
+#   @Stirling-Tools/devops-reviewers     - Frooodle, jbrunton96, ConnorYoh
+#   @Stirling-Tools/all                  - all of the above
+#
+# Outside collaborators (need Write access to count as owners): @Ludy87 @balazs-szucs
+
+# Default owners for everything
+* @Stirling-Tools/maintainers @Ludy87

 # Backend
-/app/** @DarioGii @Frooodle @Ludy87 @jbrunton96 @ConnorYoh @balazs-szucs
+/app/** @Stirling-Tools/backend-reviewers @Ludy87 @balazs-szucs

-#V2 frontend
-/frontend/** @reecebrowne @ConnorYoh @EthanHealy01 @jbrunton96 @Frooodle @balazs-szucs
-/app/core/src/main/resources/static/** @reecebrowne @ConnorYoh @EthanHealy01 @jbrunton96 @Frooodle @Ludy87 @balazs-szucs
+# V2 frontend
+/frontend/** @Stirling-Tools/frontend-reviewers @balazs-szucs
+/app/core/src/main/resources/static/** @Stirling-Tools/frontend-reviewers @Ludy87 @balazs-szucs

-#V2 docker
-/docker/backend/** @Frooodle @Ludy87 @DarioGii
-/docker/frontend/** @reecebrowne @ConnorYoh @EthanHealy01 @jbrunton96 @Frooodle @Ludy87
-/docker/compose/** @reecebrowne @ConnorYoh @EthanHealy01 @DarioGii @jbrunton96 @Frooodle @Ludy87
+# V2 docker
+/docker/backend/** @Stirling-Tools/devops-reviewers @Ludy87
+/docker/frontend/** @Stirling-Tools/frontend-reviewers @Stirling-Tools/devops-reviewers @Ludy87
+/docker/compose/** @Stirling-Tools/frontend-reviewers @Stirling-Tools/devops-reviewers @Ludy87

-
-#GHA (All users)
-/.github/** @reecebrowne @ConnorYoh @EthanHealy01 @DarioGii @jbrunton96 @Frooodle @Ludy87 @balazs-szucs
+# GHA (all users)
+/.github/** @Stirling-Tools/all @Ludy87 @balazs-szucs
@@ -123,8 +123,10 @@ generated-models: &generated-models
  - *openapi
  - frontend/editor/scripts/generate-tool-api-types.mts
  - frontend/editor/src/core/types/toolApiTypes.ts
+  - frontend/editor/src/core/types/toolIO.ts
  - engine/scripts/generate_tool_models.py
  - engine/src/stirling/models/tool_models.py
+  - engine/src/stirling/models/tool_io.py
  - .taskfiles/frontend.yml
  - .taskfiles/engine.yml
  - .github/workflows/check-generated-models.yml
@@ -11,7 +11,6 @@
    "LaserKaspar",
    "sbplat",
    "reecebrowne",
-    "DarioGii",
    "ConnorYoh",
    "EthanHealy01",
    "jbrunton96",
@@ -16,6 +16,11 @@ updates:
    cooldown:
      default-days: 7
    rebase-strategy: "auto"
+    groups:
+      simple-java-mail:
+        patterns:
+          - "org.simplejavamail:simple-java-mail"
+          - "org.simplejavamail:outlook-module"

  - package-ecosystem: "docker"
    directories:
@@ -73,14 +78,6 @@ updates:
          - "react-dom"
          - "@types/react"
          - "@types/react-dom"
-      typescript-eslint:
-        patterns:
-          - "@typescript-eslint/*"
-          - "typescript-eslint"
-      eslint:
-        patterns:
-          - "eslint"
-          - "@eslint/*"
      vite:
        patterns:
          - "vite"
@@ -19,9 +19,9 @@ import argparse
 import glob
 import os
 import re
+import tomllib  # Python 3.11+ (stdlib)
 from pathlib import Path

-import tomllib  # Python 3.11+ (stdlib)
 import tomli_w  # For writing TOML files


@@ -133,11 +133,7 @@ def update_missing_keys(reference_file, file_list, branch=""):
        file_path = Path(file_path)
        language_dir = file_path.parent.name
        reference_lang_dir = reference_file.parent.name
-        if (
-            language_dir == reference_lang_dir
-            or file_path.suffix != ".toml"
-            or file_path.parents[1].name != "locales"
-        ):
+        if language_dir == reference_lang_dir or file_path.suffix != ".toml" or file_path.parents[1].name != "locales":
            print(f"Skipping file: {file_path}")
            continue

@@ -198,9 +194,7 @@ def check_for_differences(reference_file, file_list, branch, actor):
        # Verify that file is within the expected directory
        if not absolute_path.is_relative_to(base_dir):
            has_differences = True
-            report.append(
-                f"\n⚠️ Unsafe file found: `{locale_dir}/{basename_current_file}`\n\n---\n"
-            )
+            report.append(f"\n⚠️ Unsafe file found: `{locale_dir}/{basename_current_file}`\n\n---\n")
            continue

        # Verify file size before processing
@@ -214,10 +208,7 @@ def check_for_differences(reference_file, file_list, branch, actor):
        if basename_current_file == basename_reference_file and locale_dir == "en-US":
            continue

-        if (
-            file_normpath.suffix != ".toml"
-            or basename_current_file != "translation.toml"
-        ):
+        if file_normpath.suffix != ".toml" or basename_current_file != "translation.toml":
            continue

        only_reference_file = False
@@ -261,9 +252,7 @@ def check_for_differences(reference_file, file_list, branch, actor):
                )
                report.append("")
                report.append("    Use the following command to remove them:")
-                report.append(
-                    f"    `python scripts/translations/translation_merger.py {locale_dir} remove-unused`"
-                )
+                report.append(f"    `python scripts/translations/translation_merger.py {locale_dir} remove-unused`")
                report.append("")
            if extra_keys_list:
                report.append(
@@ -271,9 +260,7 @@ def check_for_differences(reference_file, file_list, branch, actor):
                )
                report.append("")
                report.append("    Use the following command to add them:")
-                report.append(
-                    f"    `python scripts/translations/translation_merger.py {locale_dir} add-missing`"
-                )
+                report.append(f"    `python scripts/translations/translation_merger.py {locale_dir} add-missing`")
                report.append("")

            if missing_keys_list or extra_keys_list:
@@ -288,9 +275,7 @@ def check_for_differences(reference_file, file_list, branch, actor):
            output = "\n".join(
                [
                    f"      - `{key}`: first at {first}, duplicate at `{duplicate}`"
-                    for key, first, duplicate in find_duplicate_keys(
-                        branch_path / file_normpath
-                    )
+                    for key, first, duplicate in find_duplicate_keys(branch_path / file_normpath)
                ]
            )
            report.append("3. **Test Status:** ❌ **_Failed_**")
@@ -313,18 +298,14 @@ def check_for_differences(reference_file, file_list, branch, actor):
    else:
        report.append("## ✅ Overall Check Status: **_Success_**")
        report.append("")
-        report.append(
-            f"Thanks @{actor} for your help in keeping the translations up to date."
-        )
+        report.append(f"Thanks @{actor} for your help in keeping the translations up to date.")

    if not only_reference_file:
        print("\n".join(report))


 if __name__ == "__main__":
-    parser = argparse.ArgumentParser(
-        description="Find missing keys in TOML translation files"
-    )
+    parser = argparse.ArgumentParser(description="Find missing keys in TOML translation files")
    parser.add_argument(
        "--actor",
        required=False,
@@ -1,9 +0,0 @@
-pip
-setuptools
-WeasyPrint
-pdf2image
-pillow
-unoserver
-opencv-python-headless
-pre-commit
-brotli @ git+https://github.com/google/brotli.git@028fb5a23661f123017c060daa546b55cf4bde29
@@ -1,528 +0,0 @@
-#
-# This file is autogenerated by pip-compile with Python 3.13
-# by the following command:
-#
-#    pip-compile --allow-unsafe --generate-hashes --output-file='.github\scripts\requirements_dev.txt' --strip-extras '.github\scripts\requirements_dev.in'
-#
-# WARNING: pip install will require the following package to be hashed.
-# Consider using a hashable URL like https://github.com/jazzband/pip-tools/archive/SOMECOMMIT.zip
-brotli @ git+https://github.com/google/brotli.git@028fb5a23661f123017c060daa546b55cf4bde29
-    # via
-    #   -r .github/scripts/requirements_dev.in
-    #   fonttools
-cffi==2.1.0 \
-    --hash=sha256:02cb7ff33ded4f1532476731f89ede53e2e488a8e6205515a82144246ffa7dcc \
-    --hash=sha256:03e9810d18c646077e501f661b682fbf5dee4676048527ca3cffe66faa9960dd \
-    --hash=sha256:0520e1f4c35f44e209cbbb421b67eec42e6a157f59444dfb6058874ff3610e5d \
-    --hash=sha256:0582a58f3051372229ca8e7f5f589f9e5632678208d8636fea3676711fdf7fe5 \
-    --hash=sha256:0611e7ebf90573a535ebdc33ae9da222d037853983e13359f580fab781ca017f \
-    --hash=sha256:0a42c688d19fca6e095a53c6a6e2295a5b050a8b289f109adab02a9e61a25de6 \
-    --hash=sha256:0a96b74cda968eebbad56d973efe5098974f0a9fb323865bf99ea1fd24e3e64c \
-    --hash=sha256:10537b1df4967ca26d21e5072d7d54188354483b91dc75058968d3f0cf13fbda \
-    --hash=sha256:11b3fb55f4f8ad92274ed26705f65d8f91457de71f5380061eb6d125a768fecd \
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-    --hash=sha256:cbb7640ce37159548d2147b5b8c241f962143d4c71231431820783f4dc78f210 \
-    --hash=sha256:cdf2448aab5f661c9315308ec8b93f4e8a1a67a3c733f8631067a2b67d5913dc \
-    --hash=sha256:d2117334c3af3bdcb9a88522b844a2bdb5efdc4f71c6c822df55486ae1c3347a \
-    --hash=sha256:d53d10f7da99ae46f7373b9150393e9c5eab9b224909982b43832668de4779f5 \
-    --hash=sha256:d9fafc5aa2e2a39aaf7f8cc0c1f044a9b07fca12e558dca53a3cc5c654ad67a7 \
-    --hash=sha256:db3eb7d46527159a878ec3460e9d40615bc25ba337d477db681aea6e4f05c5d2 \
-    --hash=sha256:dbf7c7a88e2bac086f06d14577332760bdeecc42bdec8ac4077f6260557d9326 \
-    --hash=sha256:df2b82571a1b30f58a87bf4e5a9e78d2b1eff6c6ce8fd3aa3757221f93f0863f \
-    --hash=sha256:df92f2aba50eb4d96718b68ef76f2e57a57b54f2fa62333496d16c6d585a85ca \
-    --hash=sha256:eb4e8997a49aa2c08a3e43c9045d224448b8941d88e7ac163c7d383e560cbf98 \
-    --hash=sha256:efc1cdd798b1aaf39b4610bba7aad28c9bea9b910f25c784ccf9ec1fa719d1f9 \
-    --hash=sha256:f146d154428a2523f9cc7936c02353c2459b8f6cf07d3cd1ee1c0a611109c5d5 \
-    --hash=sha256:f5bce581e6b8c235e566a14768a943b172ada3ed73537bb0c0be1edee312d4e7 \
-    --hash=sha256:f9912624a0c0b834b7520d7769b3644453aabc0a7e1c839da7359f050750e9bc \
-    --hash=sha256:fb62edb5bb52cca65fab91a63afa7561607120d26090a7e8fda6fb9f064726da \
-    --hash=sha256:ff067a8d8d880e7809e4ac88eb009bb848870115317b306666502ccad30b147f
-    # via weasyprint
-cfgv==3.5.0 \
-    --hash=sha256:a8dc6b26ad22ff227d2634a65cb388215ce6cc96bbcc5cfde7641ae87e8dacc0 \
-    --hash=sha256:d5b1034354820651caa73ede66a6294d6e95c1b00acc5e9b098e917404669132
-    # via pre-commit
-cssselect2==0.9.0 \
-    --hash=sha256:6a99e5f91f9a016a304dd929b0966ca464bcfda15177b6fb4a118fc0fb5d9563 \
-    --hash=sha256:759aa22c216326356f65e62e791d66160a0f9c91d1424e8d8adc5e74dddfc6fb
-    # via weasyprint
-distlib==0.4.3 \
-    --hash=sha256:4b0ce306c966eb73bc3a7b6abad017c556dadd92c44701562cd528ac7fde4d5b \
-    --hash=sha256:f152097224a0ae24be5a0f6bae1b9359af82133bce63f98a95f86cae1aede9ed
-    # via virtualenv
-filelock==3.30.0 \
-    --hash=sha256:1774e682dbe443bd60f9609162fc596e2c80dc84ffc2957068953406d0520090 \
-    --hash=sha256:40632998f0772e64183bb819f086a1b9def6be1090cf1dcb9d45f46806ef279b
-    # via
-    #   python-discovery
-    #   virtualenv
-fonttools==4.63.0 \
-    --hash=sha256:032038247a96c1690f9f31e377c389383c902531b085aa4e4dabd6f57f870e69 \
-    --hash=sha256:063e08bd17bd5a90127a14123de0d6a952dbc847695fd98b63c043d58057f90c \
-    --hash=sha256:0c18358a155d75034911c5ee397a5b44cd19dd325dbb8b35fb60bf421d6a72ac \
-    --hash=sha256:0eac00b9118c3c2f87d272e45341871c5b3066baa3c86897fa634a7c3fb59096 \
-    --hash=sha256:1e874792a8212b44583ea02189d9e693906b2f78b261f372f95d6c563210ac1d \
-    --hash=sha256:22135da48a348785c5e2d5d2d9d6bec5ed44adacbaeb9db12d9493bf6c6bfa68 \
-    --hash=sha256:22693918177bd9ceabec4736d338045f357769416fc6b0b2508eefef75b08616 \
-    --hash=sha256:27fdc65af8da6f88b9c6121c47a464cbe359fcfff7ff6fc2d37a1f395d755b78 \
-    --hash=sha256:2b8ae05d9eacf6081414d759c0a352769ac28ce31280d6bb8e77b03f9e3c449f \
-    --hash=sha256:2c14b4fd138c4bafcca294765c547914e1aa431ae1ca94ab99d8db08c958bd3b \
-    --hash=sha256:308f957cdeaf8abe4e5f2f124902ef405448af92c90f80e302a3b771c2e6116b \
-    --hash=sha256:37dd23e621e3b0aef1baa70a303b80aaf38449632cfc8fd2a55fb285bbccfc02 \
-    --hash=sha256:445af2eab030a16b9171ea8bdda7ebf7d96bda2df88ee182a464252f6e05e20d \
-    --hash=sha256:51394295f1a51de8b5f30bdb1e1b9a4231536c7064ef5c6e211eec19fa36036f \
-    --hash=sha256:58dc6bb86a78d782f00f9190ca02c119cf5bbe2807536e361e18d42019f877d8 \
-    --hash=sha256:59ac449f8cca9b4ffa08d2e7bbadad87ce710d69d1eda5c3c1ce579baa987272 \
-    --hash=sha256:6b2248c5decb223562f7902ff6325077a073f608ee8e33e88ad88db734eb9f49 \
-    --hash=sha256:6d4741eb179121cab9eea4cb2393d24492373a260d7945006358c08cfbf45419 \
-    --hash=sha256:6db5140a60a5d731d21ec076745b40a310607731b0a565b50776393188649001 \
-    --hash=sha256:6e528da43bc3791085f8cb6141b1d13e459226790240340fcbb4625649238b03 \
-    --hash=sha256:796f27556dbe094c4824f75ca85267e4df776c79036c8441469a4df37038c196 \
-    --hash=sha256:79cdc9f567aec74a72918fd060283911406750cbc9fd28c1316023deb6ce31a9 \
-    --hash=sha256:7d76edbff9014094dbf03bd2d074709dfa6ec7aba13d838c937a2b33d2d6a86e \
-    --hash=sha256:7d782fac32985914c351556f68ac0855391572bcd87de50e05970d3cd4c96fc5 \
-    --hash=sha256:7dd683fef0663e9f0f45cf541d788d24caa3ec9db50796b588e1757d8b3bc007 \
-    --hash=sha256:85be818f5506e8a7753153def2c9550178f0ecae6a47b5e0e8dbb23f7cc90380 \
-    --hash=sha256:948428a275741f0b64b113c955425a953314f4b9ab9997f73a72c83e68e569c8 \
-    --hash=sha256:9ced0bd02ac751dd6319b0da88aaef24414e3b0dbc32bb4f24944821a3741a27 \
-    --hash=sha256:9e12f105d2b6342c559c298afb674006bb2893afc7102dcf8a1b55b0486b4e40 \
-    --hash=sha256:a8b33a82979e0a6a34ff435cc81317be1f95ec1ebb7a3a2d1c8a6a54f02ae44e \
-    --hash=sha256:a9faff9e0c1f76f9fd55899d2ce785832efebab37eb8ae13995853aef178bef0 \
-    --hash=sha256:af2fd1664d00a397d75f806985ddb36282091c2131a73a6485c23b4a34722263 \
-    --hash=sha256:afefc1ed0a59785a7fb06ea7e1678e849c193e1e387db783579bc7b3056fcfcb \
-    --hash=sha256:b1cd75a03ad8cb5bc40c90bfde68c0c47de423aa19e5c0f362b43520645eea94 \
-    --hash=sha256:ba04cb5891d4c0c21b6da95eda8d7b090021508a294fff33464fc7d241e0856b \
-    --hash=sha256:bf00f21eb5fb721dbaf73d1e9da6d02a1af7768f2ebcf9798be98beab8ba90f6 \
-    --hash=sha256:c0425b277a59cff3d80ca42162a8de360f318438a2ac83570842a678d826d579 \
-    --hash=sha256:c1aaa4b9c75798400ac043ce04d74e7830376c85095a5a6ed7cba2f17a266bf4 \
-    --hash=sha256:c2a2a42198b696a6f48fad91709afb55176e66a5e566131219dba372fb7f8c59 \
-    --hash=sha256:caeb583deeb5168e694b65cda8b4ee62abedfa66cf88488734466f2366b9c4e0 \
-    --hash=sha256:cb014d58140a38135f16064c74c652ed57aa0b75cbf8bb59cac821f7edb5334e \
-    --hash=sha256:ccf41f2efdf56994d22d73bef4ced1052161958169428d06ba9724ea9e9a64be \
-    --hash=sha256:cd7e9857e5e63738b9d9fd707bc1f59c8b09e5177726d23664db393c59bb08bd \
-    --hash=sha256:d76ac49f929aecaf82d83250b8347e099d7aecba0f4726c1d9b6df3b8bb5fe18 \
-    --hash=sha256:d7e5c9973aa04c95650c96e5f5ad865fbf42d62079163ecfab1e01cbc2504c22 \
-    --hash=sha256:dcf076a4474fe0d7367e5bbf5b052c7284fa1feca729c04176ce513521afd8a0 \
-    --hash=sha256:e3297a6a4059b4acc3a1e9a8b04741f240a80044eef08ebd32e8b5bcdddce75b \
-    --hash=sha256:ee08ebfa58f6e1aeff5697ab9582105bb620008c1caafb681e4c557e7483027b \
-    --hash=sha256:ef3048ef05dbb552b89817713d9cac912e00d0fde4a3105c00d29e52e10c89af \
-    --hash=sha256:fd1e3094f42d806d3d7c79162fc59e5910fcbe3a7360c385b8da969bc4493745
-    # via weasyprint
-identify==2.6.19 \
-    --hash=sha256:20e6a87f786f768c092a721ad107fc9df0eb89347be9396cadf3f4abbd1fb78a \
-    --hash=sha256:6be5020c38fcb07da56c53733538a3081ea5aa70d36a156f83044bfbf9173842
-    # via pre-commit
-nodeenv==1.10.0 \
-    --hash=sha256:5bb13e3eed2923615535339b3c620e76779af4cb4c6a90deccc9e36b274d3827 \
-    --hash=sha256:996c191ad80897d076bdfba80a41994c2b47c68e224c542b48feba42ba00f8bb
-    # via pre-commit
-numpy==2.4.6 \
-    --hash=sha256:001fbb8e08d942dd57599e781f2472269ee7f2755fae407b4f67b2f0b17da3f1 \
-    --hash=sha256:0280e0356c0829a18d9de1cb7eee50ec22ca639878d7240307ca0943d73cd2c4 \
-    --hash=sha256:043191bfa8eab18c776647b62723ac9dddece59743b13f49b2016094129c2b3f \
-    --hash=sha256:06ca2f61ec4385a07a6977c55ba998a4466c123642b4a32694d3128fce18c079 \
-    --hash=sha256:0a041d3d761dc3c35cc56ce0351506a02bcbc25f7b169f652435141a17db9096 \
-    --hash=sha256:0ab0a9c4ffb1a6d95ef519fe4247dba8eb6b18ad93999f76b7f657039acabd47 \
-    --hash=sha256:0c9136e14ed34a9e343a31c533d78a9813a69a3148332bce5e9821cb2f996e66 \
-    --hash=sha256:110f8b71aacb688ec69062bb7f6938a0f8acb01b7c1c4beb453c65b6d234584d \
-    --hash=sha256:112b06a867b235ef466ed3508ddf0238050df9c727cafb5301ac385b899189a1 \
-    --hash=sha256:17f9ade344e7d9b464a084d69bcf18fc691cb1db67c62ed80820bf4926d78f0e \
-    --hash=sha256:1e254a00cdf42b1e4d5b3d68d33af63268d41340d8885df2ab6470f2e1500147 \
-    --hash=sha256:1e978ec1e8bd0e0e4de6bb75de9d30cbb74db6b6a2bb727618613703ca0167dd \
-    --hash=sha256:25c692919ac5a01f170a3bfcd62d745b24fd095c353d50812637d6fcab442e75 \
-    --hash=sha256:260a5d70215b61ab4fadf5c7baacd64821842975eea312125ed3c39a6391b063 \
-    --hash=sha256:2803abfebfc990042cd494d8ce2d5f82e9d847af6d35ec486923aa19dbad5e73 \
-    --hash=sha256:29a287e0cf63ff528da061de6b9f64a4618da591ca1046aafc54062e40ca7eab \
-    --hash=sha256:29cb7f67d10b479ff07c17d33e39f78c07f71c40ef30d63c153d340e96cd3fb4 \
-    --hash=sha256:3213d622a0283a39a93d188f3cf72b26862df52fbb4ca3697f51705016523d41 \
-    --hash=sha256:33111801a01c12a8a1e3721f0a9232f8cfc8ae2c6b7098167e6f623c6073f402 \
-    --hash=sha256:357cc07a6d7b0b182ff02249616a03742827ebb1277546b5c7cd7f7620a45698 \
-    --hash=sha256:38efbc8de75c7a0fc1ac190162d892787f3f47b57cc291231aafee36b80982b7 \
-    --hash=sha256:4081eb135ac24158bd51cdfbef16f1c64df7063b1143f24731387137c092bec8 \
-    --hash=sha256:40fdc1ae7125e518ea98e53e69a4ebc27e1fd50510c47b7ea130cf21e5e1d42b \
-    --hash=sha256:4cfe66903cc32a9921a6733d96b19bb6abf310397581bbad89c228f5abaf0ee8 \
-    --hash=sha256:511dbaf848decaaaf4b4ca48032619fb3138710c4bf7da7617765edad1ef96b0 \
-    --hash=sha256:55cced7c52e981362f708ad635198e97a752dfba412cc03c23bbf3bd8d5cd662 \
-    --hash=sha256:56b39e5e0622a09a25bf5baf62f4bcf0cb8a41ae6e2819cf49bbc5a74c083f91 \
-    --hash=sha256:5dbbdb29840ca3d91ee0fece42fc29278886d908280bfec0a5846c6f901a3eb0 \
-    --hash=sha256:5f9fb9157b4ce2971008323afe46053787b526ef624fea915b261468a8421a0f \
-    --hash=sha256:6180d8b35af935aed8ece3a85e0a43f87393ae0ac87c8d2c8bd2c993f7270ef3 \
-    --hash=sha256:68a5124b13fa6cc2086764a20005d30bc0548146f7f5322f02fce212ca14317f \
-    --hash=sha256:68bb27509ac1b9a3443094260f6326150663b06abe40b73a2f81160623da5b67 \
-    --hash=sha256:6f41ae150c4e32db4f3310cdaf64b1593a03dbabe29eec77fc9b50fe64061df6 \
-    --hash=sha256:7265a2f3d436e54ef9f2b52b5c937e6be778781bd97a590319d7348f1c1ca997 \
-    --hash=sha256:72fbe16c6fac95aedf5937fa873445cec2110be35d8a4e9433d7501fd98dae6b \
-    --hash=sha256:7d92c3819208a60205a12a245c91ad70cb0a85336659b19b834205573ac8456e \
-    --hash=sha256:8155154c7c691289fe18f510b5d4657c68c67989f293f0535a91360392ff6538 \
-    --hash=sha256:81a1cca95ed5bb92aa8b10dd2cdc9a0d3853a50fad926c28b5d7e8ea54389627 \
-    --hash=sha256:89cd468399cfd2504718f0ba50e410dca55a170b61a02ad92bb18c8a65186e93 \
-    --hash=sha256:8ad03c0965fb3c692200e74d458ca28c1dbb4ce96f9a479a8aa041ad5fabca02 \
-    --hash=sha256:90f9849678c75fe7afa2d348ac842c168b0a4d3d61919687216dfc547976d853 \
-    --hash=sha256:948424b06129ce883307e8cff868c31396d8dc7630a59c61d70d98dbe70f222c \
-    --hash=sha256:9cd5ffd25db4e7ba6a375693b3fc0fc1791ec636c17db3720da19bde7180ec43 \
-    --hash=sha256:a0df0043bdb289bde1f62da130d20df23d58b45429f752bc7a8fc5325a225ecd \
-    --hash=sha256:a2c306dea656c12c68f51f4cea133cbe78ca7435eb28c735eac1d3ebe73be6e8 \
-    --hash=sha256:a7830bab239b79cda9c08c2da014761cafb48da6150e1da17ac06283f43b6089 \
-    --hash=sha256:a7c711e21628b52034bb5ab8d1bce291f752fcc5e92accc615778acee1ff4778 \
-    --hash=sha256:aaf159caa35993cb1f56fb9b8e4610d35758e7ca005412eb1daa856a78c9c4b1 \
-    --hash=sha256:ae506e6902902557576a26ff33eda8695e7ecb3cb36c3b573a0765dee114ebdb \
-    --hash=sha256:b507f5c4c1d508876d1819b6bf9a49d365b96320b5d4993426b33a23ca4b8261 \
-    --hash=sha256:bf162abab1c1a736333192707cef898e735a5ca00f38f27eeedf44b39d9e85eb \
-    --hash=sha256:c1a2af6c6ef86344a6b0db6b97834208bf598db514f2b155042439b62605601a \
-    --hash=sha256:c2d37ab77531417474168eb79d6d80b14f821a966818505d03013d0833edb7a8 \
-    --hash=sha256:c4fc99836233ea196540b17ab0983aff60ed07941751930f5f4d05bc3b3b7359 \
-    --hash=sha256:d581b735e177fdcdce6fed8e7e8880a3fb6ee4e3653a3ac6af01c6f4c03effc5 \
-    --hash=sha256:d6da64deb6b8ed903e7560180a92f2d804ee1ba5eeb849ac2748b8c1aba1f6d7 \
-    --hash=sha256:d8e8286dd7cea7895157318d1b91cdacac64c479f3cbc8dce548331728484751 \
-    --hash=sha256:ddea102b48f9e339f3948bf22040944184627a30fdf7f858667673b9c5f033c8 \
-    --hash=sha256:dfa20cc6ca228e6b155b11da03825975ce66aea520985dbbddf0f2a5a495c605 \
-    --hash=sha256:e3e5193ef5a3dc73bceee50f7fdc2c90dbb76c42df8d8fae3d1067a583df579e \
-    --hash=sha256:e3eeb0aabd6bd5ce64faae67e9935203a6991b4bc2a485a767fbafb2c5125f45 \
-    --hash=sha256:e5805d5a22fd19c8ccff10a9561f9df94436b0545619ea579db2d3c35294bce2 \
-    --hash=sha256:e85b752a1e912b70eaad4fafbd4d1238007ab221de2009b9a2f5ae7461239895 \
-    --hash=sha256:eaf7fa2de5c0be8ae6ff8e9bea2ccd725e980541244521d8d4b5f3354a27babe \
-    --hash=sha256:ebfb099f8dcf083deef3ac1ca4c1503f387cf76296fcb3816b66f5ecb5f54fdb \
-    --hash=sha256:ece3d2cfe132e7d51f44a832b303895e6f2d499c5e74dfbdb06ee246147a304a \
-    --hash=sha256:ed9749eef4cbd126da3dc1d6bcb3a57f5eb7ac6a6484146bdbf743f552dfc577 \
-    --hash=sha256:ede83e07a75dd06bc501566c1eca2afc0d61677c1472ac9ad93fdee6e638a48d \
-    --hash=sha256:ef4aea96ce4d3b074422cb4f2f64e216bf9e213004bb58ecfdf50ea02ea8eb9a \
-    --hash=sha256:f3a3570c4a2a16746ac2c31a7c7c7b0c186b95ce902e33db6f28094ed7387dda \
-    --hash=sha256:f407cb6b8e9d6d8c626bc73c945db1706035af8fd632295547bf1c9e46d092d6 \
-    --hash=sha256:f74a575920ab21fe304421a3fc28793d82e299cae9eccb37084e9fc7f3617c20
-    # via opencv-python-headless
-opencv-python-headless==5.0.0.93 \
-    --hash=sha256:030ca5e0837a2963ab36ef896baa9767eb8d2b83353fb28af5a521e40dd8756f \
-    --hash=sha256:09a872a157c1376ab922a69bbf22f9a95bcc7b658a9d8b436a60212b02b2eeb4 \
-    --hash=sha256:10818d91510e05c04568ae12b5cd120779c70c01bf897b001a6221fe430df80f \
-    --hash=sha256:1e55af3abfb462eeeabe5c775f12bdb36216d8a93a3583d69e6bd6e1d6ba7d00 \
-    --hash=sha256:829717b6a95554f273e49e357cee3b3a2a26b6f4842fbc1bed2b45bdd8f87e0e \
-    --hash=sha256:840bd717c21e5c11cadadc022a823315ea417f961213d06b4df010e019eb16f4 \
-    --hash=sha256:b82f9831daab90b725c7c1ee1b36cb5732c367096ac76d119e64e14eb70d5f3c \
-    --hash=sha256:c6bcd96b185975ea240d22cfdb15a1f6d080cc95264cfbe2621f21bb144d89b9 \
-    --hash=sha256:ed709fdf9aa0bd1f2ed8549e71d19449b03a675bb581eb292285f6861953be37
-    # via -r .github/scripts/requirements_dev.in
-pdf2image==1.17.0 \
-    --hash=sha256:eaa959bc116b420dd7ec415fcae49b98100dda3dd18cd2fdfa86d09f112f6d57 \
-    --hash=sha256:ecdd58d7afb810dffe21ef2b1bbc057ef434dabbac6c33778a38a3f7744a27e2
-    # via -r .github/scripts/requirements_dev.in
-pillow==12.3.0 \
-    --hash=sha256:00808c5e14ef63ac5161091d242999076604ff74b883423a11e5d7bbb38bf756 \
-    --hash=sha256:04f01d28a6aaff387bf842a13be313df23ba0597a44f1a976c9feb3c6ff4711a \
-    --hash=sha256:06ff022112bc9cbf83b60f8e028d94ad87b60621706487e65f673de61610ab59 \
-    --hash=sha256:0740a512dc522224c77d9aa5a8d70d8b7d73fb91f2c21125d8d025d3b8990e45 \
-    --hash=sha256:0847a763afefb695bc912d7c131e7e0632d4edc1d8698f58ddabec8e46b8b6d3 \
-    --hash=sha256:0dd2064cbc55aaec028ef5fbb60fa47bb6c3e7918e07ff17935284b227a9d2df \
-    --hash=sha256:0feb2e9d6ad6c9e3c06effe9d00f3f1e618a6643273576b016f591e9315a7139 \
-    --hash=sha256:10e41f0fbf1eec8cfd234b8fe17a4caac7c9d0db4c204d3c173a8f9f6ef3232b \
-    --hash=sha256:1182d52bc2d5e5d7d0949503aa7e36d12f42205dc287e4883f407b1988820d39 \
-    --hash=sha256:164b31cd1a0490ab6efae01aa5df49da7061be0af1b30e035b6e9a1bfe34ee6e \
-    --hash=sha256:1657923d2d45afb66526e5b933e5b3052e6bdea196c90d3abb2424e18c77dae8 \
-    --hash=sha256:186941b6aef820ad110fb01fb06eb925374dc3a21b17e37ec9a53b250c6fe2d1 \
-    --hash=sha256:1cca606cd25738df4ed873d5ad46bbdb3d83b5cbca291f6b4ff13a4df6b0bbe8 \
-    --hash=sha256:21900ce7ba264168cd50defae43cd75d25c833ad4ad6e73ffc5596d12e25ac89 \
-    --hash=sha256:236ff70b9312fb68943c703aa842ca6a758abfa45ac187a5e7c1452e96ef72b5 \
-    --hash=sha256:23aceaa007d6172b02c277f0cd359c79492bbb14f7072b4ede9fbcaf20648130 \
-    --hash=sha256:23d27a3e0307ec2244cc51e7287b919aa68d097504ebe19df4e76a98a3eea5bd \
-    --hash=sha256:24870b09b224f7ae3c39ed07d10e819d06f8720bc551847b1d623832b5b0e28d \
-    --hash=sha256:251bf95b67017e27b13d82f5b326234ca62d70f9cf4c2b9032de2358a3b12c7b \
-    --hash=sha256:25b9b82bb22e6e2b3cd07b39c68b7b862001226cb3dff7130d1cb914121b39ed \
-    --hash=sha256:28ce87c5ab450a9dd970b52e5aca5fe63ed432d18a2eaddd1979a00a1ba24ace \
-    --hash=sha256:300557495eb45ebb8aec96c2da9c4be642fbf7cd937278b4013ba894ea8eb0eb \
-    --hash=sha256:30f2aa603c41533cc25c05acd0da21636e84a315768feb631c937177db558931 \
-    --hash=sha256:331b624368d4f1d069149002f25f44bc61c8919ce8ddb3c45bdad8f6e2d89510 \
-    --hash=sha256:37d6d0a00072fd2948eb22bce7e1475f34569d90c87c59f7a2ec59541b77f7a6 \
-    --hash=sha256:37dc8f7bbb66efe481bb60defacef820c950c24713fb44962ed6aa2a50966de1 \
-    --hash=sha256:3b8182a766685eaa002637e28b4ec8d6b18819a0c71f579bf0dbaa5830297cce \
-    --hash=sha256:3edce1d53195db527e0191f84b71d02022de0540bf43a16ed734ed7537b07385 \
-    --hash=sha256:446c34dcc4324b084a53b705127dc15717b22c5e140ae0a3c38349d4efec071e \
-    --hash=sha256:4998562bf62a445225f22e07c896bb04b35b1b1f2eb6d760584c9c51d7a5f78c \
-    --hash=sha256:4b0a7fe987b14c31ebda6083f74f22b561fd3739bc0ac51e019622e3d72668c7 \
-    --hash=sha256:4e8c2a84d977f50b9daed6eeaf3baef67d00d5d74d932288f02cb94518ee3ace \
-    --hash=sha256:4f883547d4b7f0495ebe7056b0cc2aea76094e7a4abc8e933540f3271df27d9c \
-    --hash=sha256:514435a37670e3e5e08f3945b68718b6ed329bb84367777e16f9f4dfe1e61a0f \
-    --hash=sha256:53aa02d20d10c3d814d536aa4e5ac9b84ca0ff5a88377963b085ad6822f93e64 \
-    --hash=sha256:5594fc43d548a7ed94949d139aa1341b270f1863f11cfd37f5a6c8b778a6b67f \
-    --hash=sha256:571b9fcb07b97ef3a492028fb3d2dc0993ca23a06138b0315286566d29ef718a \
-    --hash=sha256:57b3d78c95ba9059768b10e28b813002261d3f3dfc55cc48b0c988f625175827 \
-    --hash=sha256:5afb51d599ea772b8365ae807ae557f18bccfe46ab261fd1c2a9ed700fc6eb17 \
-    --hash=sha256:6b02afb9b97f65fbca5f31db6a2a3ba21aa93030225f150fa3f249717e938fb4 \
-    --hash=sha256:6c0016e7b354317c4e9e525b937ac8596c38d2d232b419529b9cd7a1cd46e39a \
-    --hash=sha256:71d6097b330eea8fd15097780c8e89cb1a8ce7838669f48c5bacd6f663dd4701 \
-    --hash=sha256:756c768d0c9c2955feb7a56c37ea24aea2e369f8d36a88da270b6a9f19e62b5e \
-    --hash=sha256:78cb2c6865a35ab8ff8b75fd122f6033b92a62c82801110e48ddd6c936a45d91 \
-    --hash=sha256:7a743ff716f746fc19a9557f60dab1600d4613255f8a7aeb3cdde4db7eb15a66 \
-    --hash=sha256:85f998ea1848bc6757289e739cfbdda3a04adfd58b02fc018ce54d754a5ce468 \
-    --hash=sha256:8728f216dcdb6e6d555cf971cb34076139ad74b31fc2c14da4fafc741c5f6217 \
-    --hash=sha256:877c3f311ff35410f690861c4409e7ccbf0cd2f878e50628a28e5a0bb689e658 \
-    --hash=sha256:8cd2f7bdda092d99c9fc2fb7391354f306d01443d22785d0cbfafa2e2c8bb418 \
-    --hash=sha256:8e95e1385e4998ae9694eeaa4730ba5457ff61185b3a55e2e7bea0880aef452a \
-    --hash=sha256:962864dc93511324d51ddbb5b9f8731bf71675b93ca612a07441896f4688fb8c \
-    --hash=sha256:9cf95fe4d0f84c82d282745d9bb08ad9f926efa00be4697e767b814ce40d4330 \
-    --hash=sha256:9e881fca225083806662a5c43d627d215f258ff43c890f831966c7d7ba9c7402 \
-    --hash=sha256:a2b55dd6b2a4c4b7d87ffa56bdb33fdc5fdb9a462173861a7bc097f17d91cb09 \
-    --hash=sha256:a45650e8ce7fafffd731db8550230db6b0d306d181a90b67d3e6bca2f1990930 \
-    --hash=sha256:a876864214e136f0eb367788dbd7df045f4806801518e2cfe9e13229cfe06d8f \
-    --hash=sha256:ae26d61dfa7a47befdc7572b521024e8745f3d809bd95ca9505a7bba9ef849ec \
-    --hash=sha256:af8d94b0db561cf68b88a267c5c44b49e134f525d0dc2cb7ed413a66bc23559a \
-    --hash=sha256:b343699e8308bdc51978310e1c959c584e7869cc8c40780058c87da7781a1e94 \
-    --hash=sha256:b3c777e849237620b022f7f297dd67705f9f5cf1685f09f02e46f93e92725468 \
-    --hash=sha256:b629de27fda84b42cde7edef0d85f13b958b47f6e9bbcbba9b673c562a89bd8b \
-    --hash=sha256:ba09209fbe443b4acccebe845d8a138b89a8f4fbaeedd44953490b5315d5e965 \
-    --hash=sha256:ba54cfebe86920a559a7c4d6b9050791c20513650a1952ebe3368c7dc70306f8 \
-    --hash=sha256:bcb46e2f9feff8d06323983bd83ed00c201fdcab3d74973e7072a889b3979fcd \
-    --hash=sha256:bcc33feacfaefce60c12fd500a277533bdc02b10a19f7f6d348763d8140bbba7 \
-    --hash=sha256:bf16ba1b4d0b6b7c8e534936632270cf70eb00dbe09005bc345b2677b726855c \
-    --hash=sha256:cf1845d02ad822a369a49f2bb9345b1614744267682e7a03527dc3bf6eea1777 \
-    --hash=sha256:d69141514cc30b774ceea5e3ed3a6635c8d8a96edf664689b890f4089111fb35 \
-    --hash=sha256:d9c7f76c0673154f044e9d78c8655fb4213f6ca31a836df48b40fe5d187717b9 \
-    --hash=sha256:dbce0b29841537a2fa4a214c2bbf14de3587c9680caa9b4e217568472490b28f \
-    --hash=sha256:dc624f6bc473dacdf7ef7eb8678d0d08edf15cd94fad6ae5c7d6cc67a4e4902f \
-    --hash=sha256:e158cb00350dc278f3b91551101aa7d12415a66ebf2c91d8d5ac14e56ddd3ad0 \
-    --hash=sha256:e491916b378fba47242221bb9ead245211b70d504f495d105d17b14a24b4907c \
-    --hash=sha256:e795b7eb908249c4e43c7c99fac7c2c75dab0c43566e37db472a355f63693d71 \
-    --hash=sha256:e7e480451b9fa137494bccd3a7d69adbe8ac65a87d97be61e11f1b1050a5bac3 \
-    --hash=sha256:e91206ee562682b51b98ef4b26a6ef48fd84e15fd4c4bc5ec768eb641d206838 \
-    --hash=sha256:e9871b1ffbfa9656b60aeee92ed5136a5742696006fa322b29ea3d8da0ecc9cf \
-    --hash=sha256:e9aeb04d6aef139de265b29683e119b638208f88cf73cdd1658aa07221165321 \
-    --hash=sha256:ebaea975e03d3141d9d3a507df75c9b3ec90fa9d2ffd07567b3a978d9d790b26 \
-    --hash=sha256:f0606c8bf2cdefea14a43530f7657cbbb7ecf1c4222512492ef4a4434a9501ec \
-    --hash=sha256:f13c32a3abd6079a66d9526e18dad9b6d280384d49d7c54040cd57b6424041d9 \
-    --hash=sha256:f7401aebd7f581d7f83a439d87d474999317ee099218e5ad25d125290990ba65 \
-    --hash=sha256:fa4ecea169a355be7a3ade2c783e2ed12f0e40d2c5621cda8b3297faf7fbb9f5 \
-    --hash=sha256:fbd139c8447d25dd750ab79ee274cc5e1fe80fc56340ab10b18a195e1b6eca3e \
-    --hash=sha256:fdafc9cce40277e0f7a0feabce0ee50dd2fa1800f3b38015e51296b5e814048d \
-    --hash=sha256:fe3cca2e4e8a592be0f269a1ca4835c25199d9f3ce815c8491048f785b0a0198 \
-    --hash=sha256:ffd0c5368496f41b0944be820fcb7a838aa6e623d250b01acf2643939c3f99d7
-    # via
-    #   -r .github/scripts/requirements_dev.in
-    #   pdf2image
-    #   weasyprint
-platformdirs==4.10.0 \
-    --hash=sha256:31e761a6a0ca04faf7353ea759bdba55652be214725111e5aac52dfa29d4bef7 \
-    --hash=sha256:fb516cdb12eb0d857d0cd85a7c57cea4d060bee4578d6cf5a14dfdf8cbf8784a
-    # via
-    #   python-discovery
-    #   virtualenv
-pre-commit==4.6.0 \
-    --hash=sha256:718d2208cef53fdc38206e40524a6d4d9576d103eb16f0fec11c875e7716e9d9 \
-    --hash=sha256:e2cf246f7299edcabcf15f9b0571fdce06058527f0a06535068a86d38089f29b
-    # via -r .github/scripts/requirements_dev.in
-pycparser==3.0 \
-    --hash=sha256:600f49d217304a5902ac3c37e1281c9fe94e4d0489de643a9504c5cdfdfc6b29 \
-    --hash=sha256:b727414169a36b7d524c1c3e31839a521725078d7b2ff038656844266160a992
-    # via cffi
-pydyf==0.12.1 \
-    --hash=sha256:ea25b4e1fe7911195cb57067560daaa266639184e8335365cc3ee5214e7eaadc \
-    --hash=sha256:fbd7e759541ac725c29c506612003de393249b94310ea78ae44cb1d04b220095
-    # via weasyprint
-pyphen==0.17.2 \
-    --hash=sha256:3a07fb017cb2341e1d9ff31b8634efb1ae4dc4b130468c7c39dd3d32e7c3affd \
-    --hash=sha256:f60647a9c9b30ec6c59910097af82bc5dd2d36576b918e44148d8b07ef3b4aa3
-    # via weasyprint
-python-discovery==1.4.4 \
-    --hash=sha256:5cad33982d412c1f3ffb8f9ca4ea292c9680bca3942451d30b69c37fce53a4a3 \
-    --hash=sha256:abebe9120b43453b68c908acfb1e72a19d1a959ed2cb620ad38fc57d08056dbe
-    # via virtualenv
-pyyaml==6.0.3 \
-    --hash=sha256:00c4bdeba853cc34e7dd471f16b4114f4162dc03e6b7afcc2128711f0eca823c \
-    --hash=sha256:0150219816b6a1fa26fb4699fb7daa9caf09eb1999f3b70fb6e786805e80375a \
-    --hash=sha256:02893d100e99e03eda1c8fd5c441d8c60103fd175728e23e431db1b589cf5ab3 \
-    --hash=sha256:02ea2dfa234451bbb8772601d7b8e426c2bfa197136796224e50e35a78777956 \
-    --hash=sha256:0f29edc409a6392443abf94b9cf89ce99889a1dd5376d94316ae5145dfedd5d6 \
-    --hash=sha256:10892704fc220243f5305762e276552a0395f7beb4dbf9b14ec8fd43b57f126c \
-    --hash=sha256:16249ee61e95f858e83976573de0f5b2893b3677ba71c9dd36b9cf8be9ac6d65 \
-    --hash=sha256:1d37d57ad971609cf3c53ba6a7e365e40660e3be0e5175fa9f2365a379d6095a \
-    --hash=sha256:1ebe39cb5fc479422b83de611d14e2c0d3bb2a18bbcb01f229ab3cfbd8fee7a0 \
-    --hash=sha256:214ed4befebe12df36bcc8bc2b64b396ca31be9304b8f59e25c11cf94a4c033b \
-    --hash=sha256:2283a07e2c21a2aa78d9c4442724ec1eb15f5e42a723b99cb3d822d48f5f7ad1 \
-    --hash=sha256:22ba7cfcad58ef3ecddc7ed1db3409af68d023b7f940da23c6c2a1890976eda6 \
-    --hash=sha256:27c0abcb4a5dac13684a37f76e701e054692a9b2d3064b70f5e4eb54810553d7 \
-    --hash=sha256:28c8d926f98f432f88adc23edf2e6d4921ac26fb084b028c733d01868d19007e \
-    --hash=sha256:2e71d11abed7344e42a8849600193d15b6def118602c4c176f748e4583246007 \
-    --hash=sha256:34d5fcd24b8445fadc33f9cf348c1047101756fd760b4dacb5c3e99755703310 \
-    --hash=sha256:37503bfbfc9d2c40b344d06b2199cf0e96e97957ab1c1b546fd4f87e53e5d3e4 \
-    --hash=sha256:3c5677e12444c15717b902a5798264fa7909e41153cdf9ef7ad571b704a63dd9 \
-    --hash=sha256:3ff07ec89bae51176c0549bc4c63aa6202991da2d9a6129d7aef7f1407d3f295 \
-    --hash=sha256:41715c910c881bc081f1e8872880d3c650acf13dfa8214bad49ed4cede7c34ea \
-    --hash=sha256:418cf3f2111bc80e0933b2cd8cd04f286338bb88bdc7bc8e6dd775ebde60b5e0 \
-    --hash=sha256:44edc647873928551a01e7a563d7452ccdebee747728c1080d881d68af7b997e \
-    --hash=sha256:4a2e8cebe2ff6ab7d1050ecd59c25d4c8bd7e6f400f5f82b96557ac0abafd0ac \
-    --hash=sha256:4ad1906908f2f5ae4e5a8ddfce73c320c2a1429ec52eafd27138b7f1cbe341c9 \
-    --hash=sha256:501a031947e3a9025ed4405a168e6ef5ae3126c59f90ce0cd6f2bfc477be31b7 \
-    --hash=sha256:5190d403f121660ce8d1d2c1bb2ef1bd05b5f68533fc5c2ea899bd15f4399b35 \
-    --hash=sha256:5498cd1645aa724a7c71c8f378eb29ebe23da2fc0d7a08071d89469bf1d2defb \
-    --hash=sha256:5cf4e27da7e3fbed4d6c3d8e797387aaad68102272f8f9752883bc32d61cb87b \
-    --hash=sha256:5e0b74767e5f8c593e8c9b5912019159ed0533c70051e9cce3e8b6aa699fcd69 \
-    --hash=sha256:5ed875a24292240029e4483f9d4a4b8a1ae08843b9c54f43fcc11e404532a8a5 \
-    --hash=sha256:5fcd34e47f6e0b794d17de1b4ff496c00986e1c83f7ab2fb8fcfe9616ff7477b \
-    --hash=sha256:5fdec68f91a0c6739b380c83b951e2c72ac0197ace422360e6d5a959d8d97b2c \
-    --hash=sha256:6344df0d5755a2c9a276d4473ae6b90647e216ab4757f8426893b5dd2ac3f369 \
-    --hash=sha256:64386e5e707d03a7e172c0701abfb7e10f0fb753ee1d773128192742712a98fd \
-    --hash=sha256:652cb6edd41e718550aad172851962662ff2681490a8a711af6a4d288dd96824 \
-    --hash=sha256:66291b10affd76d76f54fad28e22e51719ef9ba22b29e1d7d03d6777a9174198 \
-    --hash=sha256:66e1674c3ef6f541c35191caae2d429b967b99e02040f5ba928632d9a7f0f065 \
-    --hash=sha256:6adc77889b628398debc7b65c073bcb99c4a0237b248cacaf3fe8a557563ef6c \
-    --hash=sha256:79005a0d97d5ddabfeeea4cf676af11e647e41d81c9a7722a193022accdb6b7c \
-    --hash=sha256:7c6610def4f163542a622a73fb39f534f8c101d690126992300bf3207eab9764 \
-    --hash=sha256:7f047e29dcae44602496db43be01ad42fc6f1cc0d8cd6c83d342306c32270196 \
-    --hash=sha256:8098f252adfa6c80ab48096053f512f2321f0b998f98150cea9bd23d83e1467b \
-    --hash=sha256:850774a7879607d3a6f50d36d04f00ee69e7fc816450e5f7e58d7f17f1ae5c00 \
-    --hash=sha256:8d1fab6bb153a416f9aeb4b8763bc0f22a5586065f86f7664fc23339fc1c1fac \
-    --hash=sha256:8da9669d359f02c0b91ccc01cac4a67f16afec0dac22c2ad09f46bee0697eba8 \
-    --hash=sha256:8dc52c23056b9ddd46818a57b78404882310fb473d63f17b07d5c40421e47f8e \
-    --hash=sha256:9149cad251584d5fb4981be1ecde53a1ca46c891a79788c0df828d2f166bda28 \
-    --hash=sha256:93dda82c9c22deb0a405ea4dc5f2d0cda384168e466364dec6255b293923b2f3 \
-    --hash=sha256:96b533f0e99f6579b3d4d4995707cf36df9100d67e0c8303a0c55b27b5f99bc5 \
-    --hash=sha256:9c57bb8c96f6d1808c030b1687b9b5fb476abaa47f0db9c0101f5e9f394e97f4 \
-    --hash=sha256:9c7708761fccb9397fe64bbc0395abcae8c4bf7b0eac081e12b809bf47700d0b \
-    --hash=sha256:9f3bfb4965eb874431221a3ff3fdcddc7e74e3b07799e0e84ca4a0f867d449bf \
-    --hash=sha256:a33284e20b78bd4a18c8c2282d549d10bc8408a2a7ff57653c0cf0b9be0afce5 \
-    --hash=sha256:a80cb027f6b349846a3bf6d73b5e95e782175e52f22108cfa17876aaeff93702 \
-    --hash=sha256:b30236e45cf30d2b8e7b3e85881719e98507abed1011bf463a8fa23e9c3e98a8 \
-    --hash=sha256:b3bc83488de33889877a0f2543ade9f70c67d66d9ebb4ac959502e12de895788 \
-    --hash=sha256:b865addae83924361678b652338317d1bd7e79b1f4596f96b96c77a5a34b34da \
-    --hash=sha256:b8bb0864c5a28024fac8a632c443c87c5aa6f215c0b126c449ae1a150412f31d \
-    --hash=sha256:ba1cc08a7ccde2d2ec775841541641e4548226580ab850948cbfda66a1befcdc \
-    --hash=sha256:bdb2c67c6c1390b63c6ff89f210c8fd09d9a1217a465701eac7316313c915e4c \
-    --hash=sha256:c1ff362665ae507275af2853520967820d9124984e0f7466736aea23d8611fba \
-    --hash=sha256:c2514fceb77bc5e7a2f7adfaa1feb2fb311607c9cb518dbc378688ec73d8292f \
-    --hash=sha256:c3355370a2c156cffb25e876646f149d5d68f5e0a3ce86a5084dd0b64a994917 \
-    --hash=sha256:c458b6d084f9b935061bc36216e8a69a7e293a2f1e68bf956dcd9e6cbcd143f5 \
-    --hash=sha256:d0eae10f8159e8fdad514efdc92d74fd8d682c933a6dd088030f3834bc8e6b26 \
-    --hash=sha256:d76623373421df22fb4cf8817020cbb7ef15c725b9d5e45f17e189bfc384190f \
-    --hash=sha256:ebc55a14a21cb14062aa4162f906cd962b28e2e9ea38f9b4391244cd8de4ae0b \
-    --hash=sha256:eda16858a3cab07b80edaf74336ece1f986ba330fdb8ee0d6c0d68fe82bc96be \
-    --hash=sha256:ee2922902c45ae8ccada2c5b501ab86c36525b883eff4255313a253a3160861c \
-    --hash=sha256:efd7b85f94a6f21e4932043973a7ba2613b059c4a000551892ac9f1d11f5baf3 \
-    --hash=sha256:f7057c9a337546edc7973c0d3ba84ddcdf0daa14533c2065749c9075001090e6 \
-    --hash=sha256:fa160448684b4e94d80416c0fa4aac48967a969efe22931448d853ada8baf926 \
-    --hash=sha256:fc09d0aa354569bc501d4e787133afc08552722d3ab34836a80547331bb5d4a0
-    # via pre-commit
-tinycss2==1.5.1 \
-    --hash=sha256:3415ba0f5839c062696996998176c4a3751d18b7edaaeeb658c9ce21ec150661 \
-    --hash=sha256:d339d2b616ba90ccce58da8495a78f46e55d4d25f9fd71dfd526f07e7d53f957
-    # via
-    #   cssselect2
-    #   weasyprint
-tinyhtml5==2.1.0 \
-    --hash=sha256:60a50ec3d938a37e491efa01af895853060943dcebb5627de5b10d188b338a67 \
-    --hash=sha256:6e11cfff38515834268daf89d5f85bbde0b6dd02e8d9e212d1385c2289b89f0a
-    # via weasyprint
-unoserver==3.7 \
-    --hash=sha256:b05f9578506ac7374ae1b314c3a79528636c542ac78220a9ce99110584ca424b \
-    --hash=sha256:fc44e6808071c9d2957e705ecf1742cea8a582aa5d5cc23babf36bb332ec6e8e
-    # via -r .github/scripts/requirements_dev.in
-virtualenv==21.6.1 \
-    --hash=sha256:15f978b7cd329f24855ff4a0c4b4899cc7678589f49adbdcbbb4d3232e641128 \
-    --hash=sha256:afe991df855715a2b2f60edfcc0107ef95a79fdfd8cb4cdaa71603d1c12e463b
-    # via pre-commit
-weasyprint==69.0 \
-    --hash=sha256:475951cfd917014de6d4d005caff48c6aa867e7e42b80cd5b16a0484a1609ee6 \
-    --hash=sha256:a7a32f39ca16bd82ef11de99c92ea4b5f14951c9033af035e451ce4f4ee0a88c
-    # via -r .github/scripts/requirements_dev.in
-webencodings==0.5.1 \
-    --hash=sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78 \
-    --hash=sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923
-    # via
-    #   cssselect2
-    #   tinycss2
-    #   tinyhtml5
-zopfli==0.4.3 \
-    --hash=sha256:0087c9a6f0c8a052be0f6d1a9bb71b6caffdd3e10201d6d6166e28d482cebe6d \
-    --hash=sha256:47604eee5c6704bdf0e94d8391fe3b74ddb2abd84128fbcfdc3ee0fc265feaef \
-    --hash=sha256:62248dbf8dbcbd588ee194b210e5be9fa80bce29641f55599d6d394bd2a9d8a3 \
-    --hash=sha256:628c3e941752880b3491db8d44163d0aedb221944e22a17187ff7fc549b050f6 \
-    --hash=sha256:769875152d0625c46707bcca57d4b2233fe653482067acd55fbf6ec525cb9bdc \
-    --hash=sha256:7e9703ca6e7ef66c8d05e0826b6f558b680c9db8206f84f05a3ee93430a12e42 \
-    --hash=sha256:7fa3c35193475290e3f007bbcdebdbae64ba2f012d75c632da0d727e1da50d5e \
-    --hash=sha256:88f4fbe429aad72bc206275d81fab11a097e0f951a5848d1f51083c37ea73073 \
-    --hash=sha256:921c2c9907f4364963848da5ad194b46d68865e07fdb975d04fd09bc42d47357 \
-    --hash=sha256:d3a50f91a13cea9bafe025de8fd87a005eb26de02a4f0c193127ddbf23ac8ebe \
-    --hash=sha256:d4f51dd1ab5312e837e2091284e0d9f1a138188f2e65812f9a5799dc02c45f94 \
-    --hash=sha256:eb0c9c1d40a8cb1d58762d7e57290ccb753e0828c4d01be8acb59aae5d0ca206 \
-    --hash=sha256:f2e0adcf7d36c6fd0dd36cc771ef7f0c5803a05666feafcd90d7170174a4148e
-    # via fonttools
-
-# The following packages are considered to be unsafe in a requirements file:
-pip==26.1.2 \
-    --hash=sha256:382ff9f685ee3bc25864f820aa50505825f10f5458ffff07e30a6d96e5715cab \
-    --hash=sha256:f49cd134c61cf2fd75e0ce2676db03e4054504a5a4986d00f8299ae632dc4605
-    # via -r .github/scripts/requirements_dev.in
-setuptools==83.0.0 \
-    --hash=sha256:025bccbbf0fa05b6192bc64ae1e7b16e001fd6d6d4d5de03c97b1c1ade523bef \
-    --hash=sha256:29b23c360f22f414dc7336bb39178cc7bcbf6021ed2733cde173f09dba19abb3
-    # via -r .github/scripts/requirements_dev.in
@@ -1,2 +0,0 @@
-tomlkit
-tomli-w
@@ -1,14 +0,0 @@
-#
-# This file is autogenerated by pip-compile with Python 3.13
-# by the following command:
-#
-#    pip-compile --generate-hashes --output-file='.github\scripts\requirements_sync_readme.txt' --strip-extras '.github\scripts\requirements_sync_readme.in'
-#
-tomli-w==1.2.0 \
-    --hash=sha256:188306098d013b691fcadc011abd66727d3c414c571bb01b1a174ba8c983cf90 \
-    --hash=sha256:2dd14fac5a47c27be9cd4c976af5a12d87fb1f0b4512f81d69cce3b35ae25021
-    # via -r .github/scripts/requirements_sync_readme.in
-tomlkit==0.15.0 \
-    --hash=sha256:4dbc8f0fc024412b57ced8757ac7461305126a648ff8c2c807fcb8e133a78738 \
-    --hash=sha256:7d1a9ecba3086638211b13814ea79c90dd54dd11993564376f3aa92271f5c7a3
-    # via -r .github/scripts/requirements_sync_readme.in
@@ -4,19 +4,18 @@
 Usage: verify-updater-signatures.py <dir-to-scan> [tauri.conf.json]
 """

-import binascii
-import sys
-import json
 import base64
+import binascii
 import hashlib
+import json
+import sys
 from pathlib import Path
-from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PublicKey
+
 from cryptography.exceptions import InvalidSignature
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PublicKey

 ART_ROOT = Path(sys.argv[1])
-CONF = Path(
-    sys.argv[2] if len(sys.argv) > 2 else "frontend/editor/src-tauri/tauri.conf.json"
-)
+CONF = Path(sys.argv[2] if len(sys.argv) > 2 else "frontend/editor/src-tauri/tauri.conf.json")


 def load_pubkey():
@@ -86,7 +86,7 @@ jobs:
              fi
            fi
          else
-            auth_users=("Frooodle" "sf298" "Ludy87" "LaserKaspar" "sbplat" "reecebrowne" "DarioGii" "ConnorYoh" "EthanHealy01" "jbrunton96" "balazs-szucs")
+            auth_users=("Frooodle" "sf298" "Ludy87" "LaserKaspar" "sbplat" "reecebrowne" "ConnorYoh" "EthanHealy01" "jbrunton96" "balazs-szucs")
            is_auth=false; for u in "${auth_users[@]}"; do [ "$u" = "$PR_AUTHOR" ] && is_auth=true && break; done
            if [ "$is_auth" = true ]; then
              should=true
@@ -193,7 +193,7 @@ jobs:
          echo "versionNumber=$VERSION" >> $GITHUB_OUTPUT

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}
@@ -331,7 +331,7 @@ jobs:

      - name: Set up Node.js for Storybook
        if: steps.sb-changes.outputs.storybook == 'true'
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -54,7 +54,6 @@ jobs:
            github.event.comment.user.login == 'Ludy87' ||
            github.event.comment.user.login == 'balazs-szucs' ||
            github.event.comment.user.login == 'reecebrowne' ||
-            github.event.comment.user.login == 'DarioGii' ||
            github.event.comment.user.login == 'EthanHealy01' ||
            github.event.comment.user.login == 'jbrunton96' ||
            github.event.comment.user.login == 'ConnorYoh'
@@ -206,15 +205,21 @@ jobs:
          token: ${{ steps.setup-bot.outputs.token }}

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -236,7 +241,7 @@ jobs:
        uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4.2.0

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}
@@ -259,7 +264,7 @@ jobs:
        if: needs.check-comment.outputs.enable_prototypes == 'true'
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
        with:
-          context: ./engine
+          context: .
          file: ./engine/Dockerfile
          push: true
          cache-from: type=gha,scope=stirling-pdf-engine
@@ -28,9 +28,12 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Install uv
-        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
          cache-suffix: ai-engine

      - name: Install Task
@@ -96,6 +99,14 @@ jobs:
          echo "============================================"
          exit 1

+      - name: Build engine production image
+        if: always()
+        run: docker build --file engine/Dockerfile --tag stirling-pdf-engine:ci .
+
+      - name: Build engine development image
+        if: always()
+        run: docker build --file engine/Dockerfile.dev --tag stirling-pdf-engine-dev:ci .
+
      - name: Remove engine check comment on success
        if: steps.engine-check.outcome == 'success' && github.event_name == 'pull_request'
        continue-on-error: true
@@ -35,25 +35,21 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK ${{ matrix.jdk-version }}
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: ${{ matrix.jdk-version }}
          distribution: "temurin"

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-${{ matrix.jdk-version }}-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-${{ matrix.jdk-version }}-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-${{ matrix.jdk-version }}-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -196,12 +192,14 @@ jobs:
          retention-days: 3
          if-no-files-found: warn

-      - name: Install defusedxml for coverage summary
-        # coverage-summary.py parses JaCoCo XML through defusedxml to
-        # silence security scanners that pattern-match on the stdlib
-        # xml.etree.ElementTree.parse call.
+      - name: Install uv
        if: always() && matrix.flavor == 'saas'
-        run: python -m pip install --quiet defusedxml
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
+        with:
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock

      - name: JaCoCo coverage step summary
        # Only the saas leg posts the JUnit summary - it's a strict
@@ -210,7 +208,7 @@ jobs:
        # near-identical tables crowding out the aggregate report.
        if: always() && matrix.flavor == 'saas'
        run: |
-          python scripts/coverage-summary.py \
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
            --title "Backend JUnit coverage (JDK ${{ matrix.jdk-version }})" \
            --jacoco "common=app/common/build/reports/jacoco/test/jacocoTestReport.xml" \
            --jacoco "core=app/core/build/reports/jacoco/test/jacocoTestReport.xml" \
@@ -56,12 +56,22 @@ jobs:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -319,15 +329,16 @@ jobs:
          egress-policy: audit
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - name: Install uv
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          python-version: "3.12"
-          cache: "pip"
-          cache-dependency-path: ./testing/cucumber/requirements.txt
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
      - name: Install behave test deps
        run: |
-          pip install --require-hashes --only-binary=:all: -r ./testing/cucumber/requirements.txt
+          uv sync --project engine --locked --group cucumber
      - name: Build the multi-node image
        working-directory: testing/compose
        run: docker compose -f "$MN_COMPOSE" build
@@ -350,10 +361,10 @@ jobs:
      - name: Run multi-node regression (implemented guarantees)
        working-directory: testing/cucumber
        # -e overrides behave.ini's exclusion of features/multinode; ~@known_gap skips any tracked-gap scenarios.
-        run: python -m behave features/multinode -e "features/enterprise" --tags="~@known_gap ~@destructive" --no-capture -f plain
+        run: uv run --project ../../engine --locked --group cucumber python -m behave features/multinode -e "features/enterprise" --tags="~@known_gap ~@destructive" --no-capture -f plain
      - name: Run multi-node failover (destructive)
        working-directory: testing/cucumber
-        run: python -m behave features/multinode -e "features/enterprise" --tags="@destructive ~@known_gap" --no-capture -f plain
+        run: uv run --project ../../engine --locked --group cucumber python -m behave features/multinode -e "features/enterprise" --tags="@destructive ~@known_gap" --no-capture -f plain
      - name: Dump node logs on failure
        if: failure()
        working-directory: testing/compose
@@ -60,8 +60,43 @@ jobs:
        with:
          filters: .github/config/.files.yaml

-  build:
+  gradle-cache-prime:
+    name: Prime shared Gradle cache
    needs: [files-changed]
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
+        with:
+          egress-policy: audit
+      - name: Checkout repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - name: Set up JDK 25
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
+        with:
+          java-version: "25"
+          distribution: "temurin"
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-
+      - name: Resolve backend dependencies
+        run: ./gradlew :stirling-pdf:classes -PnoSpotless --no-daemon
+        env:
+          STIRLING_FLAVOR: saas
+          MAVEN_USER: ${{ secrets.MAVEN_USER }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          MAVEN_PUBLIC_URL: ${{ secrets.MAVEN_PUBLIC_URL }}
+
+  build:
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      actions: read
      contents: read
@@ -76,7 +111,7 @@ jobs:
    # works after Hibernate's ddl-auto=update migrates the schema. Gated on
    # the `project` filter so doc-only PRs skip this ~5-minute job.
    if: needs.files-changed.outputs.project == 'true'
-    needs: [files-changed]
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      contents: read
    uses: ./.github/workflows/db-migration-test.yml
@@ -84,7 +119,7 @@ jobs:

  check-generateOpenApiDocs:
    if: needs.files-changed.outputs.openapi == 'true'
-    needs: [files-changed]
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      contents: read
    uses: ./.github/workflows/check-openapi.yml
@@ -120,7 +155,7 @@ jobs:

  playwright-e2e-live:
    if: needs.files-changed.outputs.frontend == 'true'
-    needs: [files-changed]
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      contents: read
    uses: ./.github/workflows/e2e-live.yml
@@ -128,7 +163,7 @@ jobs:

  playwright-e2e-enterprise:
    if: needs.files-changed.outputs.proprietary == 'true'
-    needs: [files-changed]
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      contents: read
    uses: ./.github/workflows/build-enterprise.yml
@@ -136,7 +171,7 @@ jobs:

  check-licence:
    if: needs.files-changed.outputs.build == 'true'
-    needs: [files-changed, build]
+    needs: [files-changed, build, gradle-cache-prime]
    permissions:
      contents: read
    uses: ./.github/workflows/check-licence.yml
@@ -144,7 +179,7 @@ jobs:

  docker-compose-tests:
    if: needs.files-changed.outputs.project == 'true'
-    needs: [files-changed]
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      actions: write
      contents: read
@@ -156,7 +191,7 @@ jobs:

  test-build-docker-images:
    if: github.event_name == 'pull_request' && needs.files-changed.outputs.project == 'true'
-    needs: [files-changed, build, check-generateOpenApiDocs, check-licence]
+    needs: [files-changed, build, check-generateOpenApiDocs, check-licence, gradle-cache-prime]
    permissions:
      contents: read
      packages: read
@@ -174,12 +209,14 @@ jobs:
      pull-requests: write
    uses: ./.github/workflows/tauri-build.yml
    secrets: inherit
-    # PR smoke build: macOS + Windows (the platforms our developers use). 
+    # PR smoke build: macOS + Windows (the platforms our developers use).
+    # sign: true only reaches macOS - tauri-build's per-platform gate keeps
+    # Windows/Linux signing on main, and an unsigned .dmg cannot be opened.
    # The full signed multi-OS matrix runs on release;
    # nightly still warms the Rust cache with all-OS defaults.
    with:
      platform: windows-macos
-      sign: false
+      sign: true

  ai-engine:
    if: needs.files-changed.outputs.engine == 'true'
@@ -197,7 +234,7 @@ jobs:
  # frontend filter, so a CSS-only PR does not pay for a backend build.
  generated-models:
    if: needs.files-changed.outputs.generated-models == 'true'
-    needs: [files-changed]
+    needs: [files-changed, gradle-cache-prime]
    permissions:
      contents: read
      pull-requests: write
@@ -1,12 +1,12 @@
 name: Check generated models

-# Verifies the committed generated API models are still in sync with the Java
-# OpenAPI spec: the frontend tool API types
-# (frontend/editor/src/core/types/toolApiTypes.ts) and the engine tool
-# models (engine/src/stirling/models/tool_models.py). Regenerates both with the
-# single top-level `task tool-models` and fails if either committed file is
-# out of date. Called from build.yml when the backend Java, frontend, or engine
-# changes; also runs on push to main as a post-merge safety net.
+# Verifies the committed generated files are still in sync with the Java OpenAPI
+# spec: the request models (toolApiTypes.ts, tool_models.py) and the tool I/O
+# tables saying what each endpoint accepts and produces (toolIO.ts, tool_io.py).
+# Regenerates them all with the single top-level `task tool-models` and fails if
+# any committed file is out of date. Called from build.yml when the
+# backend Java, frontend, or engine changes; also runs on push to main as a
+# post-merge safety net.
 on:
  workflow_call:
  push:
@@ -31,24 +31,33 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Install uv
-        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
          cache-suffix: generated-models

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.0
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Set up Node
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -57,18 +66,10 @@ jobs:
      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0

-      # Rebuilds the OpenAPI spec from the current Java and regenerates both the
-      # frontend types and the engine tool models from it.
-      - name: Regenerate generated models
-        run: task tool-models
-
      - name: Verify generated models are up to date
        id: models-check
        continue-on-error: true
-        run: |
-          git diff --exit-code \
-            frontend/editor/src/core/types/toolApiTypes.ts \
-            engine/src/stirling/models/tool_models.py
+        run: task tool-models:check

      - name: Comment on generated models check failure
        # Only post a comment on PRs. github-script's PR helpers need an
@@ -83,9 +84,9 @@ jobs:
              marker,
              '### Generated Models Check Failed',
              '',
-              'The generated `frontend/editor/src/core/types/toolApiTypes.ts` and/or `engine/src/stirling/models/tool_models.py` are out of date with the Java OpenAPI spec and will need to be regenerated before they can be merged in.',
+              'One or more generated files are out of date with the Java OpenAPI spec and will need to be regenerated before they can be merged in.',
              '',
-              'Run `task tool-models` to regenerate both, then commit the updated files.',
+              'Run `task tool-models` to regenerate them, then commit the updated files.',
            ].join('\n');
            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
@@ -116,11 +117,10 @@ jobs:
          echo "  Generated Models Check Failed"
          echo "============================================"
          echo ""
-          echo "The generated frontend API types and/or engine tool"
-          echo "models are out of date with the Java OpenAPI spec and"
-          echo "will need to be regenerated before they can be merged in."
+          echo "One or more generated files are out of date with the Java"
+          echo "OpenAPI spec and will need to be regenerated before merging."
          echo ""
-          echo "Run 'task tool-models' to regenerate both, then"
+          echo "Run 'task tool-models' to regenerate them, then"
          echo "commit the updated files."
          echo "============================================"
          exit 1
@@ -21,25 +21,21 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -22,25 +22,21 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -195,20 +195,23 @@ jobs:
            console.log(`Reference file path: ${referenceFilePath}`);
            core.exportVariable("REFERENCE_FILE", referenceFilePath);

-      - name: Set up Python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+      - name: Install uv
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          python-version: "3.12"
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock

      - name: Install Python dependencies
        run: |
-          pip install --require-hashes --only-binary=:all: -r ./.github/scripts/requirements_sync_readme.txt
+          uv sync --project engine --locked --group tools

      - name: Run Python script to check files
        id: run-check
        run: |
          echo "Running Python script to check TOML files..."
-          python .github/scripts/check_language_toml.py \
+          uv run --project engine --locked --group tools python .github/scripts/check_language_toml.py \
            --actor ${{ github.event.pull_request.user.login }} \
            --reference-file "${REFERENCE_FILE}" \
            --branch "pr-branch" \
@@ -41,35 +41,29 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Install uv
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
-
-      - name: Set up Python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
-        with:
-          python-version: "3.12"
-
-      - name: Install defusedxml for coverage scripts
-        # Both coverage-summary.py and coverage-matrix.py parse JaCoCo
-        # XML through defusedxml - see the script headers for context.
-        run: python -m pip install --quiet defusedxml
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock

      # Pattern matches every artifact this PR's producers might upload:
      #   jacoco-exec-junit-jdk-25            (uploaded only by the saas
@@ -81,7 +75,7 @@ jobs:
      # Each lands as a sibling dir under coverage-execs/, with the .exec
      # files preserving their original relative paths.
      - name: Download all .exec artifacts
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v6.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          pattern: jacoco-exec-*
          path: coverage-execs/
@@ -162,7 +156,7 @@ jobs:
        # ("how much of the backend do real user flows cover?").
        if: steps.inventory.outputs.found_e2e == 'true'
        run: |
-          python scripts/coverage-summary.py \
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
            --title "Real user-flow backend coverage (e2e:live + cucumber)" \
            --jacoco "merged=build/reports/jacoco/aggregate-e2e/jacocoTestReport.xml" \
            --github-step-summary
@@ -173,7 +167,7 @@ jobs:
        # is meaningless when one is a strict superset of the other.
        if: steps.inventory.outputs.found_all == 'true'
        run: |
-          python scripts/coverage-summary.py \
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
            --title "Combined backend coverage (JUnit + e2e:live + cucumber)" \
            --jacoco "merged=build/reports/jacoco/aggregate-all/jacocoTestReport.xml" \
            --github-step-summary
@@ -206,7 +200,7 @@ jobs:
        # absence on backend-only runs by skipping the download entirely
        # when the producer job was not part of this workflow run.
        if: inputs.frontend-validation-result == 'success'
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v6.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: frontend-coverage
          path: matrix-inputs/vitest/
@@ -216,7 +210,7 @@ jobs:
        # e2e-live uploads the artifact with a stable name. Skip the
        # download entirely when the producer job did not run.
        if: inputs.playwright-e2e-live-result == 'success'
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v6.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: playwright-frontend-coverage
          path: matrix-inputs/playwright/
@@ -228,7 +222,7 @@ jobs:
        # generated above) plus whichever frontend artifacts landed.
        # Every input is optional; missing ones render as "-".
        run: |
-          python scripts/coverage-matrix.py \
+          uv run --project engine --locked --group tools python scripts/coverage-matrix.py \
            ${{ steps.inventory.outputs.found_all == 'true' && '--jacoco-all build/reports/jacoco/aggregate-all/jacocoTestReport.xml' || '' }} \
            ${{ steps.inventory.outputs.found_e2e == 'true' && '--jacoco-e2e build/reports/jacoco/aggregate-e2e/jacocoTestReport.xml' || '' }} \
            --vitest matrix-inputs/vitest/coverage-summary.json \
@@ -25,28 +25,24 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: 25
          distribution: temurin

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
-
-      # No `-PnoSpotless` here yet because the upstream cache layer matches the
-      # backend build's; reuse keeps cold-cache cost identical.
+      # Keep the normal formatting path here so this smoke test exercises the
+      # same Gradle configuration as the backend build.
      - name: Build Stirling-PDF JAR
        env:
          MAVEN_USER: ${{ secrets.MAVEN_USER }}
@@ -85,7 +85,7 @@ jobs:
          fi

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}
@@ -33,25 +33,21 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      # When the PR changes the base image, test.sh builds it locally
      # (stirling-pdf-base:local) into the daemon image store. A buildx
@@ -73,16 +69,17 @@ jobs:
          sudo curl -SL "https://github.com/docker/compose/releases/download/v2.39.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
          sudo chmod +x /usr/local/bin/docker-compose

-      - name: Set up Python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+      - name: Install uv
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          python-version: "3.12"
-          cache: "pip" # caching pip dependencies
-          cache-dependency-path: ./testing/cucumber/requirements.txt
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock

-      - name: Pip requirements
+      - name: Install Cucumber and coverage dependencies
        run: |
-          pip install --require-hashes --only-binary=:all: -r ./testing/cucumber/requirements.txt
+          uv sync --project engine --locked --group cucumber --group tools

      - name: Extract JaCoCo agent for cucumber coverage
        # Stages build/jacoco/jacocoagent.jar where the coverage override
@@ -125,16 +122,10 @@ jobs:
            echo "report=false" >> "$GITHUB_OUTPUT"
          fi

-      - name: Install defusedxml for coverage summary
-        # coverage-summary.py parses JaCoCo XML through defusedxml -
-        # see the script header for context.
-        if: always() && steps.cucumber-coverage.outputs.report == 'true'
-        run: python -m pip install --quiet defusedxml
-
      - name: Cucumber coverage step summary
        if: always() && steps.cucumber-coverage.outputs.report == 'true'
        run: |
-          python scripts/coverage-summary.py \
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
            --title "Cucumber (docker) JaCoCo coverage" \
            --jacoco "cucumber=build/reports/jacoco/cucumber/jacocoTestReport.xml" \
            --github-step-summary
@@ -21,12 +21,40 @@ jobs:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-
+      # Gradle does not retry 429s, and a cold cache resolving the buildscript
+      # classpath is exactly where Maven Central rate-limits us. Retry it here,
+      # where a failure is cheap, instead of inside the backgrounded bootRun.
+      - name: Prime Gradle dependencies
+        env:
+          MAVEN_USER: ${{ secrets.MAVEN_USER }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          MAVEN_PUBLIC_URL: ${{ secrets.MAVEN_PUBLIC_URL }}
+        run: |
+          for attempt in 1 2 3; do
+            if ./gradlew --quiet -PnoSpotless :stirling-pdf:classes; then
+              exit 0
+            fi
+            echo "::warning::Gradle dependency resolution failed (attempt $attempt of 3)"
+            sleep $((attempt * 30))
+          done
+          echo "::error::Gradle could not resolve dependencies after 3 attempts"
+          exit 1
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -53,6 +81,11 @@ jobs:
          # to aggregate. Chromium-only - other engines silently skip.
          PW_COVERAGE: "1"
          PLAYWRIGHT_JSON_OUTPUT_FILE: ${{ github.workspace }}/frontend/playwright-report/results.json
+          # Internal mirror, as in backend-build.yml. Empty on Dependabot and
+          # fork PRs, where the build falls back to Maven Central.
+          MAVEN_USER: ${{ secrets.MAVEN_USER }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          MAVEN_PUBLIC_URL: ${{ secrets.MAVEN_PUBLIC_URL }}
        run: task e2e:live
      - name: Flag flaky tests
        # Runs regardless of the test outcome: a flaky test (passed on retry)
@@ -66,6 +99,10 @@ jobs:
      - name: Generate JaCoCo report from e2e:live .exec
        if: always()
        id: live-coverage
+        env:
+          MAVEN_USER: ${{ secrets.MAVEN_USER }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_PASSWORD }}
+          MAVEN_PUBLIC_URL: ${{ secrets.MAVEN_PUBLIC_URL }}
        # `if: always()` so even a failed test run still produces a
        # report from whatever flows did exercise the backend before
        # the failure. The task itself tolerates a missing .exec
@@ -82,20 +119,18 @@ jobs:
            echo "::warning::No e2e:live .exec found at .test-state/playwright/jacoco.exec; skipping report"
            echo "report=false" >> "$GITHUB_OUTPUT"
          fi
-      - name: Set up Python for coverage summary
-        if: always() && steps.live-coverage.outputs.report == 'true'
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+      - name: Install uv
+        if: always()
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          python-version: "3.12"
-      - name: Install defusedxml for coverage summary
-        # coverage-summary.py uses defusedxml instead of stdlib xml.etree
-        # to dodge XXE / billion-laughs scanner findings.
-        if: always() && steps.live-coverage.outputs.report == 'true'
-        run: python -m pip install --quiet defusedxml
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
      - name: e2e:live coverage step summary
        if: always() && steps.live-coverage.outputs.report == 'true'
        run: |
-          python scripts/coverage-summary.py \
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
            --title "Playwright (live backend) JaCoCo coverage" \
            --jacoco "e2e-live=build/reports/jacoco/e2e-live/jacocoTestReport.xml" \
            --github-step-summary
@@ -118,23 +153,6 @@ jobs:
          retention-days: 7
          if-no-files-found: warn

-      - name: Set up Python for frontend coverage summary
-        # Separate from the backend-coverage python step because the
-        # frontend path doesn't depend on a JaCoCo report - it produces
-        # a summary even on backend failure, as long as some Playwright
-        # tests ran far enough to dump V8 coverage.
-        if: always()
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
-        with:
-          python-version: "3.12"
-
-      - name: Install defusedxml for frontend coverage summary
-        # Idempotent re-install: the backend-coverage step may have
-        # installed it already, but this leg can run on its own when the
-        # backend report step skips (e.g. .exec missing).
-        if: always()
-        run: python -m pip install --quiet defusedxml
-
      - name: Aggregate Playwright frontend (V8) coverage
        # Rolls per-test V8 dumps from the test-base fixture into one
        # vitest-shaped coverage-summary.json. Tolerates a missing dump
@@ -145,7 +163,7 @@ jobs:
        run: |
          if [ -d .test-state/playwright/coverage-pw ] && \
             find .test-state/playwright/coverage-pw -name '*.json' -type f | grep -q .; then
-            python scripts/playwright-coverage-summary.py \
+            uv run --project engine --locked --group tools python scripts/playwright-coverage-summary.py \
              .test-state/playwright/coverage-pw \
              --out .test-state/playwright/coverage-pw-summary/coverage-summary.json
            echo "summary=true" >> "$GITHUB_OUTPUT"
@@ -157,10 +175,10 @@ jobs:
      - name: Playwright frontend coverage step summary
        if: always() && steps.pw-frontend-coverage.outputs.summary == 'true'
        run: |
-          python scripts/coverage-summary.py \
-            --title "Playwright (live) frontend coverage" \
-            --vitest .test-state/playwright/coverage-pw-summary/coverage-summary.json \
-            --github-step-summary
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
+          --title "Playwright (live) frontend coverage" \
+          --vitest .test-state/playwright/coverage-pw-summary/coverage-summary.json \
+          --github-step-summary

      - name: Upload Playwright frontend coverage
        # Bundle both the aggregated summary and the raw V8 dumps so
@@ -2,7 +2,8 @@ name: Playwright E2E (stubbed)

 # Reusable workflow called from build.yml. Backend-free Playwright suite —
 # fast, no Spring Boot required. Runs against the `stubbed` project which
-# mocks API responses in the browser.
+# mocks API responses in the browser. Fans out one job per browser
+# (chromium/firefox/webkit) so all three run in parallel on their own runner.
 on:
  workflow_call:

@@ -11,7 +12,19 @@ permissions:

 jobs:
  playwright-e2e:
+    name: playwright-e2e (${{ matrix.browser }})
    runs-on: ubuntu-latest
+    strategy:
+      # One browser breaking must not mask a failure in another - report all.
+      fail-fast: false
+      matrix:
+        include:
+          - browser: chromium
+            project: stubbed
+          - browser: firefox
+            project: stubbed-firefox
+          - browser: webkit
+            project: stubbed-webkit
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
@@ -20,23 +33,23 @@ jobs:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
          cache-dependency-path: frontend/package-lock.json
      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
-      - name: Install Playwright (chromium only)
-        run: task e2e:install -- chromium
+      - name: Install Playwright (${{ matrix.browser }})
+        run: task e2e:install -- ${{ matrix.browser }}
      - name: Build frontend (production bundle for vite preview)
        env:
          VITE_BUILD_FOR_PREVIEW: "1"
        run: task frontend:build
-      - name: Run stubbed E2E tests (chromium)
+      - name: Run stubbed E2E tests (${{ matrix.browser }})
        env:
          PLAYWRIGHT_JSON_OUTPUT_FILE: ${{ github.workspace }}/frontend/playwright-report/results.json
-        run: task e2e:stubbed -- --workers=3
+        run: task e2e:stubbed-project PROJECT=${{ matrix.project }} -- --workers=3
      - name: Flag flaky tests
        # Runs regardless of the test outcome: a flaky test (passed on retry)
        # leaves the step green, so this is the only place it surfaces. Emits
@@ -50,6 +63,6 @@ jobs:
        if: always()
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
-          name: playwright-report-stubbed-${{ github.run_id }}
+          name: playwright-report-stubbed-${{ matrix.browser }}-${{ github.run_id }}
          path: frontend/playwright-report/
          retention-days: 7
@@ -35,7 +35,7 @@ jobs:
          # Need the base branch too, to diff against it.
          fetch-depth: 0
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -80,7 +80,7 @@ jobs:
          persist-credentials: false

      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -345,15 +345,21 @@ jobs:
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -21,7 +21,7 @@ jobs:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -115,20 +115,18 @@ jobs:
        id: frontend-coverage
        continue-on-error: true
        run: task frontend:test:coverage
-      - name: Set up Python for coverage summary
+      - name: Install uv
        if: always()
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          python-version: "3.12"
-      - name: Install defusedxml for coverage summary
-        # See coverage-summary.py header - it parses XML through defusedxml
-        # to dodge the stdlib parser's exposure to XXE / billion-laughs.
-        if: always()
-        run: python -m pip install --quiet defusedxml
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
      - name: Vitest coverage step summary
        if: always()
        run: |
-          python scripts/coverage-summary.py \
+          uv run --project engine --locked --group tools python scripts/coverage-summary.py \
            --title "Frontend Vitest coverage" \
            --vitest frontend/editor/coverage/coverage-summary.json \
            --github-step-summary
@@ -12,13 +12,14 @@ on:
          - "true"
          - "false"
      platform:
-        description: "Platform to build (windows, macos, linux, or all)"
+        description: "Platform to build (windows, windows-arm64, macos, linux, or all)"
        required: true
        default: "all"
        type: choice
        options:
          - all
          - windows
+          - windows-arm64
          - macos
          - linux
      sign:
@@ -51,25 +52,21 @@ jobs:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependencies
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
-          key: gradle-${{ runner.os }}-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
          restore-keys: |
-            gradle-${{ runner.os }}-
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -87,24 +84,35 @@ jobs:
      - name: Determine build matrix
        id: set-matrix
        run: |
+          # windows-arm64: NSIS only (WiX MSI has no arm64 support in Tauri) and no
+          # JPDFium natives yet - flip to windows-arm64 once JPDFium ships them.
+          WINDOWS='{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64","jpdfium_platforms":"windows-x64"}'
+          WINDOWS_ARM64='{"platform":"windows-11-arm","args":"--target aarch64-pc-windows-msvc --bundles nsis","name":"windows-arm64","jpdfium_platforms":"none"}'
+          MACOS='{"platform":"macos-15","args":"--target universal-apple-darwin","name":"macos-universal","jpdfium_platforms":"darwin-arm64,darwin-x64"}'
+          LINUX='{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64","jpdfium_platforms":"linux-x64"}'
+          ALL="$WINDOWS,$WINDOWS_ARM64,$MACOS,$LINUX"
+
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            case "${{ github.event.inputs.platform }}" in
              "windows")
-                echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64","jpdfium_platforms":"windows-x64"}]}' >> $GITHUB_OUTPUT
+                echo "matrix={\"include\":[$WINDOWS,$WINDOWS_ARM64]}" >> $GITHUB_OUTPUT
+                ;;
+              "windows-arm64")
+                echo "matrix={\"include\":[$WINDOWS_ARM64]}" >> $GITHUB_OUTPUT
                ;;
              "macos")
-                echo 'matrix={"include":[{"platform":"macos-15","args":"--target universal-apple-darwin","name":"macos-universal","jpdfium_platforms":"darwin-arm64,darwin-x64"}]}' >> $GITHUB_OUTPUT
+                echo "matrix={\"include\":[$MACOS]}" >> $GITHUB_OUTPUT
                ;;
              "linux")
-                echo 'matrix={"include":[{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64","jpdfium_platforms":"linux-x64"}]}' >> $GITHUB_OUTPUT
+                echo "matrix={\"include\":[$LINUX]}" >> $GITHUB_OUTPUT
                ;;
              *)
-                echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64","jpdfium_platforms":"windows-x64"},{"platform":"macos-15","args":"--target universal-apple-darwin","name":"macos-universal","jpdfium_platforms":"darwin-arm64,darwin-x64"},{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64","jpdfium_platforms":"linux-x64"}]}' >> $GITHUB_OUTPUT
+                echo "matrix={\"include\":[$ALL]}" >> $GITHUB_OUTPUT
                ;;
            esac
          else
            # For push/release events, build all platforms
-            echo 'matrix={"include":[{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64","jpdfium_platforms":"windows-x64"},{"platform":"macos-15","args":"--target universal-apple-darwin","name":"macos-universal","jpdfium_platforms":"darwin-arm64,darwin-x64"},{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64","jpdfium_platforms":"linux-x64"}]}' >> $GITHUB_OUTPUT
+            echo "matrix={\"include\":[$ALL]}" >> $GITHUB_OUTPUT
          fi

  build-jars:
@@ -134,19 +142,25 @@ jobs:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Setup Node.js
        if: matrix.variant.build_frontend == true
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 22
          cache: "npm"
@@ -208,7 +222,7 @@ jobs:
          sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf libjavascriptcoregtk-4.0-dev libsoup2.4-dev libjavascriptcoregtk-4.1-dev libsoup-3.0-dev

      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 22
          cache: "npm"
@@ -226,7 +240,7 @@ jobs:
      # before the second setup-java overwrites JAVA_HOME.
      - name: Set up x86_64 JDK 25 (macOS universal JRE)
        if: matrix.platform == 'macos-15'
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"
@@ -236,16 +250,23 @@ jobs:
        if: matrix.platform == 'macos-15'
        run: echo "X64_JAVA_HOME=$JAVA_HOME" >> "$GITHUB_ENV"

+      # Temurin has no windows-aarch64 JDK 25 yet; Microsoft OpenJDK does.
      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
-          distribution: "temurin"
+          distribution: ${{ matrix.platform == 'windows-11-arm' && 'microsoft' || 'temurin' }}

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -271,7 +292,7 @@ jobs:
      # DigiCert KeyLocker Setup (Cloud HSM)
      - name: Setup DigiCert KeyLocker
        id: digicert-setup
-        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
+        if: ${{ startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
        uses: digicert/ssm-code-signing@1d820463733701cf1484c7eb5d7d24a15ca2c454 # v1.2.1
        env:
          SM_API_KEY: ${{ secrets.SM_API_KEY }}
@@ -281,7 +302,7 @@ jobs:
          SM_HOST: ${{ secrets.SM_HOST }}

      - name: Setup DigiCert KeyLocker Certificate
-        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
+        if: ${{ startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
        shell: pwsh
        run: |
          Write-Host "Setting up DigiCert KeyLocker environment..."
@@ -316,7 +337,7 @@ jobs:

      # Traditional PFX Certificate Import (fallback if KeyLocker not configured)
      - name: Import Windows Code Signing Certificate
-        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY == '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
+        if: ${{ startsWith(matrix.platform, 'windows') && env.SM_API_KEY == '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
        env:
          WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
          WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
@@ -384,7 +405,7 @@ jobs:
      # Without this, signCommand failures are opaque (Tauri captures but drops
      # smctl's stderr) - running these loudly surfaces auth/env/keypair issues.
      - name: Preflight smctl
-        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
+        if: ${{ startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
        shell: pwsh
        env:
          KEYPAIR_ALIAS: ${{ secrets.SM_KEYPAIR_ALIAS }}
@@ -415,7 +436,7 @@ jobs:
      # smctl reads SM_HOST, SM_API_KEY, SM_CLIENT_CERT_FILE, SM_CLIENT_CERT_PASSWORD
      # from env (set by prior DigiCert setup step). No --config-file needed.
      - name: Configure Windows code signing
-        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
+        if: ${{ startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
        shell: bash
        env:
          KEYPAIR_ALIAS: ${{ secrets.SM_KEYPAIR_ALIAS }}
@@ -454,7 +475,7 @@ jobs:
          fi

      - name: Build Tauri app
-        uses: tauri-apps/tauri-action@84b9d35b5fc46c1e45415bdb6144030364f7ebc5 # v0.6.2
+        uses: tauri-apps/tauri-action@1deb371b0cd8bd54025b384f1cd735e725c4060f # v1.0.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
@@ -484,7 +505,54 @@ jobs:
          projectPath: ./frontend/editor
          tauriScript: npx tauri
          args: ${{ matrix.args }}
-          updaterJsonKeepUniversal: true
+
+      # Bundled libwayland conflicts with the host's on some distros (Fedora
+      # Wayland: EGL_BAD_PARAMETER, blank window - #6878). Repack without it,
+      # then regenerate the updater .sig (repack invalidates the original) and
+      # GPG-sign again when release signing is on.
+      - name: Strip bundled Wayland libs from AppImage
+        if: matrix.platform == 'ubuntu-22.04'
+        continue-on-error: true
+        env:
+          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
+          GPG_SIGN: ${{ (env.RELEASE_GPG_PRIVATE_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master')) && '1' || '0' }}
+          SIGN_KEY: ${{ vars.RELEASE_GPG_FINGERPRINT }}
+          APPIMAGETOOL_SIGN_PASSPHRASE: ${{ secrets.RELEASE_GPG_PASSPHRASE }}
+        run: |
+          set -euo pipefail
+          AI=$(find "$PWD/frontend/editor/src-tauri/target" -name "*.AppImage" | head -1)
+          if [ -z "$AI" ]; then echo "No AppImage found - skipping"; exit 0; fi
+          chmod +x "$AI"
+          WORK=$(mktemp -d)
+          (cd "$WORK" && "$AI" --appimage-extract >/dev/null)
+          if ! ls "$WORK/squashfs-root/usr/lib/"libwayland-* >/dev/null 2>&1; then
+            echo "No bundled libwayland - nothing to strip"
+            rm -rf "$WORK"
+            exit 0
+          fi
+          rm -f "$WORK/squashfs-root/usr/lib/"libwayland-*
+          curl -fsSL -o "$WORK/appimagetool" \
+            https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage
+          # Pinned checksum: never execute an unverified downloaded binary. On
+          # mismatch (upstream rebuilt continuous) the step aborts and the
+          # original AppImage ships unchanged - update the pin deliberately.
+          echo "a6d71e2b6cd66f8e8d16c37ad164658985e0cf5fcaa950c90a482890cb9d13e0  $WORK/appimagetool" | sha256sum -c -
+          chmod +x "$WORK/appimagetool"
+          SIGN_ARGS=()
+          if [ "$GPG_SIGN" = "1" ] && [ -n "${SIGN_KEY:-}" ]; then
+            SIGN_ARGS=(--sign --sign-key "$SIGN_KEY")
+          fi
+          "$WORK/appimagetool" --appimage-extract-and-run "${SIGN_ARGS[@]}" "$WORK/squashfs-root" "$AI.new"
+          # Updater payload signature must match the repacked bytes. The CLI
+          # reads the key/password from env - never pass secrets as argv.
+          if [ -n "${TAURI_SIGNING_PRIVATE_KEY:-}" ]; then
+            (cd frontend && npx tauri signer sign "$AI.new")
+            mv "$AI.new.sig" "$AI.sig"
+          fi
+          mv "$AI.new" "$AI"
+          rm -rf "$WORK"
+          echo "Stripped bundled libwayland from $(basename "$AI")"

      - name: Clear release GPG key from runner keyring (Linux)
        if: always() && matrix.platform == 'ubuntu-22.04' && env.RELEASE_GPG_PRIVATE_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master')
@@ -502,10 +570,31 @@ jobs:
      # artifact. Tauri signs a COPY when bundling into the MSI and leaves the raw
      # cargo output unsigned, so checking it produces false negatives.
      - name: Verify Windows Code Signature
-        if: ${{ matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
+        if: ${{ startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && (github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && github.event.inputs.sign != 'false') || github.ref == 'refs/heads/V2-master') }}
        timeout-minutes: 15
        shell: pwsh
        run: |
+          # arm64 ships an NSIS installer, not an MSI. Tauri's signCommand signs the
+          # inner exe before packing and the setup exe after, so verifying the setup
+          # exe is the arm64 equivalent of the MSI + inner-exe check below.
+          if ("${{ matrix.platform }}" -eq "windows-11-arm") {
+            $setupExes = Get-ChildItem -Path "./frontend/editor/src-tauri/target" -Filter "*-setup.exe" -Recurse -File
+            if ($setupExes.Count -eq 0) {
+              Write-Host "[ERROR] No NSIS installer found under target/"
+              exit 1
+            }
+            foreach ($exe in $setupExes) {
+              $sig = Get-AuthenticodeSignature -FilePath $exe.FullName
+              Write-Host "NSIS installer: $($exe.Name) Status=$($sig.Status), Signer=$($sig.SignerCertificate.Subject)"
+              if ($sig.Status -ne "Valid") {
+                Write-Host "[ERROR] NSIS installer is not signed"
+                exit 1
+              }
+            }
+            Write-Host "[SUCCESS] NSIS installer is properly signed"
+            exit 0
+          }
+
          $allSigned = $true

          # Check MSI installer (outer wrapper - what users download)
@@ -569,7 +658,7 @@ jobs:
      # but drops stderr when the command exits non-zero, making failures opaque.
      # The real errors live in smctl's log files - surface them here for debugging.
      - name: Dump smctl logs on failure
-        if: ${{ failure() && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' }}
+        if: ${{ failure() && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' }}
        shell: pwsh
        run: |
          $logDir = "$env:USERPROFILE\.signingmanager\logs"
@@ -605,6 +694,11 @@ jobs:
          if [ "${{ matrix.platform }}" = "windows-latest" ]; then
            find . -name "*.msi" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}.msi" \;
            find . -name "*.msi.sig" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}.msi.sig" \;
+          elif [ "${{ matrix.platform }}" = "windows-11-arm" ]; then
+            # arm64 ships the NSIS installer (WiX MSI has no arm64 support in Tauri).
+            # The setup exe is also its own updater payload (-> sibling .sig).
+            find . -name "*-setup.exe" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}-setup.exe" \;
+            find . -name "*-setup.exe.sig" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}-setup.exe.sig" \;
          elif [ "${{ matrix.platform }}" = "macos-15" ]; then
            # DMG = manual install; .app.tar.gz (+ .sig) = updater payload.
            # Raw .app is intentionally not shipped (hundreds of MB of uncompressed input).
@@ -719,6 +813,10 @@ jobs:
                  'bundles': ['Stirling-PDF-windows-x86_64.msi'],
                  'targets': ['windows-x86_64-msi', 'windows-x86_64'],
              },
+              {
+                  'bundles': ['Stirling-PDF-windows-arm64-setup.exe'],
+                  'targets': ['windows-aarch64-nsis', 'windows-aarch64'],
+              },
              {
                  'bundles': ['Stirling-PDF-macos-universal.app.tar.gz'],
                  'targets': ['darwin-x86_64', 'darwin-aarch64'],
@@ -789,10 +887,16 @@ jobs:

      # Gate publish on valid updater sigs. Runs after the review upload (so
      # artifacts survive for debugging) and before action-gh-release.
+      - name: Install uv
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
+        with:
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
      - name: Verify updater signatures
        run: |
-          python3 -m pip install --quiet 'cryptography==44.0.0'
-          python3 .github/scripts/verify-updater-signatures.py \
+          uv run --project engine --locked --only-group updater-signatures python .github/scripts/verify-updater-signatures.py \
            ./artifacts/tauri frontend/editor/src-tauri/tauri.conf.json

      # workflow_dispatch path requires platform=='all' so a single-platform
@@ -803,7 +907,7 @@ jobs:
      # instead of silently shipping a broken auto-update.
      - name: Upload binaries to Release
        if: (github.event_name == 'workflow_dispatch' && github.event.inputs.test_mode != 'true' && github.event.inputs.platform == 'all') || github.event_name == 'release' || github.ref == 'refs/heads/V2-master'
-        uses: softprops/action-gh-release@b4309332981a82ec1c5618f44dd2e27cc8bfbfda # v3.0.0
+        uses: softprops/action-gh-release@3d0d9888cb7fd7b750713d6e236d1fcb99157228 # v3.0.2
        with:
          tag_name: v${{ needs.determine-matrix.outputs.version }}
          # Don't regenerate/append notes on re-runs, and don't force this into the
@@ -817,6 +921,7 @@ jobs:
          files: |
            ./artifacts/**/*.jar
            ./artifacts/**/*.msi
+            ./artifacts/**/*-setup.exe
            ./artifacts/**/*.dmg
            ./artifacts/**/*.app.tar.gz
            ./artifacts/**/*.deb
@@ -26,7 +26,7 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -59,9 +59,10 @@ jobs:
  # the story itself — a shared component, a theme token — still surfaces within
  # a day.
  a11y-all-stories:
-    name: a11y (every story)
+    name: a11y (every story, light + dark)
    runs-on: ubuntu-latest
-    timeout-minutes: 60
+    # Two full sweeps (one per theme), each ~30 minutes of browser time.
+    timeout-minutes: 120
    steps:
      - name: Harden the runner (Audit all outbound calls)
        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
@@ -72,7 +73,7 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -81,7 +82,7 @@ jobs:
      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0

-      - name: a11y gate (every story)
+      - name: a11y gate (every story, light + dark)
        run: task frontend:storybook:a11y

      - name: Upload scan reports
@@ -25,9 +25,12 @@ jobs:
          persist-credentials: false

      - name: Install uv
-        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
          cache-suffix: pre-commit

      - name: Install Task
@@ -50,13 +50,13 @@ jobs:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}

      - name: Login to GitHub Container Registry
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
@@ -67,7 +67,7 @@ jobs:
        uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4.2.0

      - name: Set up QEMU
-        uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
+        uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8 # v4.2.0

      - name: Convert repository owner to lowercase
        id: repoowner
@@ -75,7 +75,7 @@ jobs:

      - name: Generate tags for base image
        id: meta
-        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9 # v6.1.0
+        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        with:
          images: |
            ${{ secrets.DOCKER_HUB_ORG_USERNAME }}/stirling-pdf-base
@@ -60,25 +60,21 @@ jobs:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependencies
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
-          key: gradle-${{ runner.os }}-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
          restore-keys: |
-            gradle-${{ runner.os }}-
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Set up Docker Buildx
        id: buildx
@@ -107,20 +103,20 @@ jobs:
          cosign-release: "v2.4.1"

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}

      - name: Login to GitHub Container Registry
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ github.token }}

      - name: Set up QEMU
-        uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
+        uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8 # v4.2.0

      - name: Convert repository owner to lowercase
        id: repoowner
@@ -129,7 +125,7 @@ jobs:
      - name: Generate tags for latest
        id: meta
        if: env.RUN_MAIN_APP == 'true'
-        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9 # v6.1.0
+        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        with:
          images: |
            ${{ secrets.DOCKER_HUB_USERNAME }}/s-pdf
@@ -177,7 +173,7 @@ jobs:

      - name: Generate tags for latest-fat
        id: meta-fat
-        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9 # v6.1.0
+        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        if: env.RUN_MAIN_APP == 'true' && github.ref != 'refs/heads/main' && github.ref != 'refs/heads/testMain'
        with:
          images: |
@@ -221,7 +217,7 @@ jobs:

      - name: Generate tags for ultra-lite
        id: meta-lite
-        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9 # v6.1.0
+        uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        if: env.RUN_MAIN_APP == 'true' && github.ref != 'refs/heads/main' && github.ref != 'refs/heads/testMain'
        with:
          images: |
@@ -26,13 +26,13 @@ jobs:
        uses: imjasonh/setup-crane@31b88afe9de28ae0ffa220711af4b60be9435f6e # v0.4

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}

      - name: Login to GitHub Container Registry
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
@@ -45,7 +45,7 @@ jobs:
          persist-credentials: false

      - name: "Run analysis"
-        uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.4.3
+        uses: ossf/scorecard-action@2d1146689b8cda280b9bc96326124645441f03bc # v2.4.4
        with:
          results_file: results.sarif
          results_format: sarif
@@ -75,6 +75,6 @@ jobs:

      # Upload the results to GitHub's code scanning dashboard.
      - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@9e0d7b8d25671d64c341c19c0152d693099fb5ba # v3.29.5
+        uses: github/codeql-action/upload-sarif@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v3.29.5
        with:
          sarif_file: results.sarif
@@ -34,15 +34,21 @@ jobs:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Generate Swagger documentation
        run: ./gradlew :stirling-pdf:generateOpenApiDocs
@@ -50,7 +50,7 @@ jobs:
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "22"
          cache: "npm"
@@ -51,28 +51,25 @@ jobs:
          app-id: ${{ secrets.GH_APP_ID }}
          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}

-      - name: Set up Python
-        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+      - name: Install uv
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
        with:
-          python-version: "3.12"
-          cache: "pip" # caching pip dependencies
+          enable-cache: true
+          cache-dependency-glob: |
+            engine/pyproject.toml
+            engine/uv.lock
+          cache-suffix: sync-files

      - name: Install Python dependencies
        run: |
-          pip install --require-hashes --only-binary=:all: -r ./.github/scripts/requirements_sync_readme.txt
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
-        with:
-          enable-cache: true
-          cache-suffix: sync-files
+          uv sync --project engine --locked --group tools

      - name: Install Task
        uses: go-task/setup-task@3be4020d41929789a01026e0e427a4321ce0ad44 # v2.0.0

      - name: Sync translation TOML files
        run: |
-          python .github/scripts/check_language_toml.py --reference-file "frontend/editor/public/locales/en-US/translation.toml" --branch main
+          uv run --project engine --locked --group tools python .github/scripts/check_language_toml.py --reference-file "frontend/editor/public/locales/en-US/translation.toml" --branch main

      - name: Sort translation TOML files
        run: |
@@ -85,7 +82,7 @@ jobs:

      - name: Sync README.md
        run: |
-          python scripts/counter_translation_v3.py
+          uv run --project engine --locked --group tools python scripts/counter_translation_v3.py

      - name: Run git add
        run: |
@@ -12,7 +12,7 @@ on:
  workflow_call:
    inputs:
      platform:
-        description: "Platform to build (windows, macos, linux, windows-macos, or all)."
+        description: "Platform to build (windows, windows-arm64, macos, linux, windows-macos, or all)."
        required: false
        type: string
        default: "all"
@@ -29,13 +29,14 @@ on:
  workflow_dispatch:
    inputs:
      platform:
-        description: "Platform to build (windows, macos, linux, windows-macos, or all)"
+        description: "Platform to build (windows, windows-arm64, macos, linux, windows-macos, or all)"
        required: true
        default: "all"
        type: choice
        options:
          - all
          - windows
+          - windows-arm64
          - macos
          - linux
          - windows-macos
@@ -73,15 +74,19 @@ jobs:
          PLATFORM: ${{ inputs.platform }}
        run: |
          WINDOWS='{"platform":"windows-latest","args":"--target x86_64-pc-windows-msvc","name":"windows-x86_64","jpdfium_platforms":"windows-x64"}'
+          # ARM64: NSIS only (WiX MSI has no arm64 support in Tauri) and no JPDFium
+          # natives yet - flip jpdfium_platforms to windows-arm64 once JPDFium ships it.
+          WINDOWS_ARM64='{"platform":"windows-11-arm","args":"--target aarch64-pc-windows-msvc --bundles nsis","name":"windows-arm64","jpdfium_platforms":"none"}'
          MACOS='{"platform":"macos-15","args":"--target universal-apple-darwin","name":"macos-universal","jpdfium_platforms":"darwin-arm64,darwin-x64"}'
          LINUX='{"platform":"ubuntu-22.04","args":"","name":"linux-x86_64","jpdfium_platforms":"linux-x64"}'

          case "$PLATFORM" in
-            windows)       ENTRIES=("$WINDOWS") ;;
+            windows)       ENTRIES=("$WINDOWS" "$WINDOWS_ARM64") ;;
+            windows-arm64) ENTRIES=("$WINDOWS_ARM64") ;;
            macos)         ENTRIES=("$MACOS") ;;
            linux)         ENTRIES=("$LINUX") ;;
            windows-macos) ENTRIES=("$WINDOWS" "$MACOS") ;;
-            *)             ENTRIES=("$WINDOWS" "$MACOS" "$LINUX") ;;
+            *)             ENTRIES=("$WINDOWS" "$WINDOWS_ARM64" "$MACOS" "$LINUX") ;;
          esac

          # Drop macOS entries when Apple certificate secret is unavailable
@@ -108,6 +113,11 @@ jobs:
      WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
      APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
      RELEASE_GPG_PRIVATE_KEY: ${{ secrets.RELEASE_GPG_PRIVATE_KEY }}
+      # Per-platform sign gate. macOS signs on any run with the cert available,
+      # PRs included: Gatekeeper blocks an unsigned .dmg, so an unsigned macOS
+      # PR build is not testable. Windows and Linux stay main-only, matching the
+      # gates on their own signing steps below.
+      SIGN_BUNDLE: ${{ inputs.sign && (matrix.platform == 'macos-15' && secrets.APPLE_CERTIFICATE != '' || github.ref == 'refs/heads/main') }}
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
@@ -124,7 +134,7 @@ jobs:
          sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf libjavascriptcoregtk-4.0-dev libsoup2.4-dev libjavascriptcoregtk-4.1-dev libsoup-3.0-dev

      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 22
          cache: "npm"
@@ -152,7 +162,7 @@ jobs:

      - name: Set up x86_64 JDK 25 (macOS universal JRE)
        if: matrix.platform == 'macos-15'
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"
@@ -162,16 +172,23 @@ jobs:
        if: matrix.platform == 'macos-15'
        run: echo "X64_JAVA_HOME=$JAVA_HOME" >> "$GITHUB_ENV"

+      # Temurin has no windows-aarch64 JDK 25 yet; Microsoft OpenJDK does.
      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
-          distribution: "temurin"
+          distribution: ${{ matrix.platform == 'windows-11-arm' && 'microsoft' || 'temurin' }}

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Setup Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -198,7 +215,7 @@ jobs:
      # DigiCert KeyLocker Setup (Cloud HSM)
      - name: Setup DigiCert KeyLocker
        id: digicert-setup
-        if: ${{ inputs.sign && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
+        if: ${{ inputs.sign && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
        uses: digicert/ssm-code-signing@1d820463733701cf1484c7eb5d7d24a15ca2c454 # v1.2.1
        env:
          SM_API_KEY: ${{ secrets.SM_API_KEY }}
@@ -208,7 +225,7 @@ jobs:
          SM_HOST: ${{ secrets.SM_HOST }}

      - name: Setup DigiCert KeyLocker Certificate
-        if: ${{ inputs.sign && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
+        if: ${{ inputs.sign && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
        shell: pwsh
        run: |
          Write-Host "Setting up DigiCert KeyLocker environment..."
@@ -243,7 +260,7 @@ jobs:

      # Traditional PFX Certificate Import (fallback if KeyLocker not configured)
      - name: Import Windows Code Signing Certificate
-        if: ${{ inputs.sign && matrix.platform == 'windows-latest' && env.SM_API_KEY == '' && github.ref == 'refs/heads/main' }}
+        if: ${{ inputs.sign && startsWith(matrix.platform, 'windows') && env.SM_API_KEY == '' && github.ref == 'refs/heads/main' }}
        env:
          WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
          WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
@@ -274,7 +291,7 @@ jobs:
          }

      - name: Import Apple Developer Certificate
-        if: inputs.sign && matrix.platform == 'macos-15' && env.APPLE_CERTIFICATE != ''
+        if: env.SIGN_BUNDLE == 'true' && matrix.platform == 'macos-15'
        env:
          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
          APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
@@ -295,7 +312,7 @@ jobs:
          rm certificate.p12

      - name: Verify Certificate
-        if: inputs.sign && matrix.platform == 'macos-15' && env.APPLE_CERTIFICATE != ''
+        if: env.SIGN_BUNDLE == 'true' && matrix.platform == 'macos-15'
        run: |
          echo "Verifying Apple Developer Certificate..."
          KEYCHAIN_PATH=$RUNNER_TEMP/app-signing.keychain-db
@@ -318,7 +335,7 @@ jobs:
          ls -la /usr/bin/hd* || echo "No hd* tools found"

      - name: Preflight smctl
-        if: ${{ inputs.sign && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
+        if: ${{ inputs.sign && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
        shell: pwsh
        env:
          KEYPAIR_ALIAS: ${{ secrets.SM_KEYPAIR_ALIAS }}
@@ -331,7 +348,7 @@ jobs:
          if ($LASTEXITCODE -ne 0) { Write-Host "[WARN] smctl windows certsync returned non-zero - continuing" }

      - name: Configure Windows code signing
-        if: ${{ inputs.sign && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
+        if: ${{ inputs.sign && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && github.ref == 'refs/heads/main' }}
        shell: bash
        env:
          KEYPAIR_ALIAS: ${{ secrets.SM_KEYPAIR_ALIAS }}
@@ -368,8 +385,8 @@ jobs:
          fi

      - name: Build Tauri app (signed)
-        if: inputs.sign
-        uses: tauri-apps/tauri-action@84b9d35b5fc46c1e45415bdb6144030364f7ebc5 # v0.6.2
+        if: env.SIGN_BUNDLE == 'true'
+        uses: tauri-apps/tauri-action@1deb371b0cd8bd54025b384f1cd735e725c4060f # v1.0.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
@@ -403,8 +420,8 @@ jobs:
          args: ${{ matrix.platform == 'ubuntu-22.04' && (inputs.minimal && '--bundles deb' || '--bundles deb,rpm') || matrix.args }}

      - name: Build Tauri app (unsigned)
-        if: ${{ !inputs.sign }}
-        uses: tauri-apps/tauri-action@84b9d35b5fc46c1e45415bdb6144030364f7ebc5 # v0.6.2
+        if: env.SIGN_BUNDLE != 'true'
+        uses: tauri-apps/tauri-action@1deb371b0cd8bd54025b384f1cd735e725c4060f # v1.0.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SIGN: "0"
@@ -430,7 +447,7 @@ jobs:
      - name: Build Tauri app (Linux AppImage)
        if: matrix.platform == 'ubuntu-22.04' && !inputs.minimal
        continue-on-error: true
-        uses: tauri-apps/tauri-action@84b9d35b5fc46c1e45415bdb6144030364f7ebc5 # v0.6.2
+        uses: tauri-apps/tauri-action@1deb371b0cd8bd54025b384f1cd735e725c4060f # v1.0.0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SIGN: ${{ (inputs.sign && env.RELEASE_GPG_PRIVATE_KEY != '' && github.ref == 'refs/heads/main') && '1' || '0' }}
@@ -447,6 +464,37 @@ jobs:
          tauriScript: npx tauri
          args: --bundles appimage

+      # Bundled libwayland conflicts with the host's on some distros (Fedora
+      # Wayland: EGL_BAD_PARAMETER, blank window - #6878). The AppImage
+      # ecosystem excludelist agrees these libs must come from the system.
+      - name: Strip bundled Wayland libs from AppImage
+        if: matrix.platform == 'ubuntu-22.04' && !inputs.minimal
+        continue-on-error: true
+        run: |
+          set -euo pipefail
+          AI=$(find "$PWD/frontend/editor/src-tauri/target" -name "*.AppImage" | head -1)
+          if [ -z "$AI" ]; then echo "No AppImage found - skipping"; exit 0; fi
+          chmod +x "$AI"
+          WORK=$(mktemp -d)
+          (cd "$WORK" && "$AI" --appimage-extract >/dev/null)
+          if ! ls "$WORK/squashfs-root/usr/lib/"libwayland-* >/dev/null 2>&1; then
+            echo "No bundled libwayland - nothing to strip"
+            rm -rf "$WORK"
+            exit 0
+          fi
+          rm -f "$WORK/squashfs-root/usr/lib/"libwayland-*
+          curl -fsSL -o "$WORK/appimagetool" \
+            https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage
+          # Pinned checksum: never execute an unverified downloaded binary. On
+          # mismatch (upstream rebuilt continuous) the step aborts and the
+          # original AppImage ships unchanged - update the pin deliberately.
+          echo "a6d71e2b6cd66f8e8d16c37ad164658985e0cf5fcaa950c90a482890cb9d13e0  $WORK/appimagetool" | sha256sum -c -
+          chmod +x "$WORK/appimagetool"
+          "$WORK/appimagetool" --appimage-extract-and-run "$WORK/squashfs-root" "$AI.new"
+          mv "$AI.new" "$AI"
+          rm -rf "$WORK"
+          echo "Stripped bundled libwayland from $(basename "$AI")"
+
      - name: Clear release GPG key from runner keyring (Linux)
        if: always() && inputs.sign && matrix.platform == 'ubuntu-22.04' && env.RELEASE_GPG_PRIVATE_KEY != '' && github.ref == 'refs/heads/main'
        env:
@@ -458,7 +506,7 @@ jobs:
          fi

      - name: Verify notarization (macOS only)
-        if: inputs.sign && matrix.platform == 'macos-15'
+        if: env.SIGN_BUNDLE == 'true' && matrix.platform == 'macos-15'
        run: |
          echo "🔍 Verifying notarization status..."
          cd ./frontend/editor/src-tauri/target
@@ -485,6 +533,9 @@ jobs:
            # Only ship the MSI installer. The loose exe and WiX toolset exes
            # are not the user-facing installer - the MSI contains the signed inner exe.
            find . -name "*.msi" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}.msi" \;
+          elif [ "${{ matrix.platform }}" = "windows-11-arm" ]; then
+            # arm64 ships the NSIS installer (WiX MSI has no arm64 support in Tauri).
+            find . -name "*-setup.exe" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}-setup.exe" \;
          elif [ "${{ matrix.platform }}" = "macos-15" ]; then
            find . -name "*.dmg" -exec cp {} "$DIST/Stirling-PDF-${{ matrix.name }}.dmg" \;
          else
@@ -496,9 +547,28 @@ jobs:
      # Verify the MSI AND the inner exe extracted from it are signed.
      # The inner exe is what gets installed on users' machines and what AV scans.
      - name: Verify Windows Code Signature
-        if: inputs.sign && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' && github.ref == 'refs/heads/main'
+        if: inputs.sign && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' && github.ref == 'refs/heads/main'
        shell: pwsh
        run: |
+          # arm64 ships an NSIS installer, not an MSI. Tauri's signCommand signs the
+          # inner exe before packing and the setup exe after, so verifying the setup
+          # exe is the arm64 equivalent of the MSI + inner-exe check below.
+          if ("${{ matrix.platform }}" -eq "windows-11-arm") {
+            $exePath = "./dist/Stirling-PDF-${{ matrix.name }}-setup.exe"
+            if (-not (Test-Path $exePath)) {
+              Write-Host "[ERROR] NSIS installer not found at $exePath"
+              exit 1
+            }
+            $sig = Get-AuthenticodeSignature -FilePath $exePath
+            Write-Host "NSIS installer: Status=$($sig.Status), Signer=$($sig.SignerCertificate.Subject)"
+            if ($sig.Status -ne "Valid") {
+              Write-Host "[ERROR] NSIS installer is not signed"
+              exit 1
+            }
+            Write-Host "[SUCCESS] NSIS installer is properly signed"
+            exit 0
+          }
+
          $allSigned = $true
          $msiPath = "./dist/Stirling-PDF-${{ matrix.name }}.msi"

@@ -544,7 +614,7 @@ jobs:
          Write-Host "[SUCCESS] MSI and inner exe are properly signed"

      - name: Dump smctl logs on failure
-        if: ${{ failure() && matrix.platform == 'windows-latest' && env.SM_API_KEY != '' }}
+        if: ${{ failure() && startsWith(matrix.platform, 'windows') && env.SM_API_KEY != '' }}
        shell: pwsh
        run: |
          $logDir = "$env:USERPROFILE\.signingmanager\logs"
@@ -571,7 +641,7 @@ jobs:
          cd ./frontend/editor/src-tauri/target

          # Check for expected artifacts based on platform
-          if [ "${{ matrix.platform }}" = "windows-latest" ]; then
+          if [ "${{ matrix.platform }}" = "windows-latest" ] || [ "${{ matrix.platform }}" = "windows-11-arm" ]; then
            echo "Checking for Windows artifacts..."
            find . -name "*.exe" -o -name "*.msi" | head -5
            if [ $(find . -name "*.exe" | wc -l) -eq 0 ]; then
@@ -650,6 +720,7 @@ jobs:
            // Map of expected artifact names to display info
            const artifactMap = {
              'Stirling-PDF-windows-x86_64': { icon: '🪟', platform: 'Windows x64', files: '.exe, .msi' },
+              'Stirling-PDF-windows-arm64': { icon: '🪟', platform: 'Windows ARM64', files: '-setup.exe (NSIS)' },
              'Stirling-PDF-macos-universal': { icon: '🍎', platform: 'macOS Universal', files: '.dmg' },
              'Stirling-PDF-linux-x86_64': { icon: '🐧', platform: 'Linux x64', files: '.deb, .rpm, .AppImage' }
            };
@@ -61,7 +61,7 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Login to GitHub Container Registry
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
@@ -79,25 +79,21 @@ jobs:
          echo "Disk space after cleanup:" && df -h

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Cache Gradle dependency artifacts
+      - name: Cache Gradle User Home
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
          path: |
+            ~/.gradle/caches
            ~/.gradle/wrapper
-            ~/.gradle/caches/modules-2/files-2.1
-            ~/.gradle/caches/modules-2/metadata-2.*
-          key: gradle-deps-${{ runner.os }}-jdk-25-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties', '**/*.gradle', '**/*.gradle.kts', 'settings.gradle', 'settings.gradle.kts', 'gradle/libs.versions.toml') }}
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
-        with:
-          gradle-version: 9.6.1
-          cache-disabled: true
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Install Task
        uses: go-task/setup-task@01a4adf9db2d14c1de7a560f09170b6e0df736aa # v2.1.0
@@ -111,7 +107,7 @@ jobs:
          STIRLING_PDF_DESKTOP_UI: false

      - name: Set up QEMU
-        uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
+        uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8 # v4.2.0

      - name: Set up Docker Buildx
        id: buildx
@@ -203,7 +199,7 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up QEMU
-        uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
+        uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8 # v4.2.0

      - name: Set up Docker Buildx
        id: buildx
@@ -33,15 +33,21 @@ jobs:
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up JDK 25
-        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5.7.0
        with:
          java-version: "25"
          distribution: "temurin"

-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
+      - name: Cache Gradle User Home
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
        with:
-          gradle-version: 9.6.1
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml', 'settings.gradle', 'build.gradle', 'app/**/build.gradle', 'gradle/**/*.gradle') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-${{ runner.arch }}-jdk-25-
+            gradle-${{ runner.os }}-${{ runner.arch }}-

      - name: Build with Gradle
        run: ./gradlew build
@@ -61,7 +67,7 @@ jobs:
          echo "versionNumber=$VERSION" >> $GITHUB_OUTPUT

      - name: Login to Docker Hub
-        uses: docker/login-action@abd2ef45e78c5afb21d64d4ca52ee8550d9572c7 # v4.5.1
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}
@@ -156,7 +162,7 @@ jobs:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up Node
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          cache: "npm"
          cache-dependency-path: frontend/package-lock.json
@@ -22,6 +22,9 @@ pipeline/
 customFiles/
 configs/
 watchedFolders/
+# The rule above targets the app's runtime watched-folders working dir, but it
+# also matches this frontend source component dir; keep the source tracked.
+!frontend/editor/src/proprietary/components/watchedFolders/
 clientWebUI/
 # Scratch dir used by local fixture-regeneration runs (see
 # app/proprietary/src/test/resources/db-migration-fixtures/README.md).
@@ -22,7 +22,7 @@ frontend/editor/src/portal/components/docs/GettingStartedSection.tsx:generic-api

 # False positive: generic-api-key matches the Java type name "X509Certificate"
 # in a method signature (CreateSignatureBase.resolveSignatureAlgorithm) - not a secret.
-app/core/src/main/java/org/apache/pdfbox/examples/signature/CreateSignatureBase.java:generic-api-key:224
+app/core/src/main/java/stirling/software/SPDF/pdf/signature/CreateSignatureBase.java:generic-api-key:224

 # Supabase publishable key (public by design, RLS-protected) used as a CI fallback
 # default in the tauri-build workflow when the GitHub secret is unset - not a real secret.
@@ -114,6 +114,15 @@ tasks:
      - cmd: ./gradlew test
        platforms: [linux, darwin]

+  test:force:
+    desc: "Run backend tests, ignoring cached results"
+    aliases: [test:no-cache]
+    cmds:
+      - cmd: cmd /c ".\gradlew.bat cleanTest test --no-build-cache"
+        platforms: [windows]
+      - cmd: ./gradlew cleanTest test --no-build-cache
+        platforms: [linux, darwin]
+
  format:
    desc: "Auto-fix code formatting"
    cmds:
@@ -137,6 +146,7 @@ tasks:

  swagger:
    desc: "Generate OpenAPI docs"
+    run: once
    cmds:
      - cmd: cmd /c ".\gradlew.bat :stirling-pdf:copySwaggerDoc"
        platforms: [windows]
@@ -22,6 +22,7 @@ vars:
              linux-amd64)   echo "linux-x64";;
              linux-arm64)   echo "linux-arm64";;
              windows-amd64) echo "windows-x64";;
+              windows-arm64) echo "none";;  # no JPDFium windows-arm64 natives published yet
              *)             echo "all";;
          esac
      fi
@@ -15,6 +15,15 @@ tasks:
    cmds:
      - npx playwright test --project=stubbed {{.CLI_ARGS}}

+  stubbed-project:
+    desc: "Run the stubbed E2E suite for a single Playwright project"
+    dir: frontend/editor
+    deps: [ ':frontend:prepare' ]
+    vars:
+      PROJECT: '{{.PROJECT | default "stubbed"}}'
+    cmds:
+      - npx playwright test --project={{.PROJECT}} {{.CLI_ARGS}}
+
  live:
    desc: "Run live E2E tests"
    summary: |
@@ -2,22 +2,49 @@ version: '3'

 tasks:
  install:
-    desc: "Install engine dependencies"
+    desc: "Install engine runtime and development dependencies"
    run: once
    cmds:
      - uv python install 3.13.8
-      - uv sync
+      - uv sync --locked --group engine --group engine-dev
    sources:
      - uv.lock
      - pyproject.toml
    status:
      - test -d .venv

+  lock:
+    desc: "Update the engine lockfile from project metadata"
+    cmds:
+      - uv lock
+
+  lock:upgrade:
+    desc: "Upgrade allowed engine dependencies and update the lockfile"
+    cmds:
+      - uv lock --upgrade
+
+  lock:check:
+    desc: "Check whether the engine lockfile is current"
+    cmds:
+      - uv lock --check
+
+  update:
+    desc: "Upgrade engine dependencies and synchronize the environment"
+    cmds:
+      - task: lock:upgrade
+      - uv sync --locked --group engine --group engine-dev
+
+  update:all:
+    desc: "Upgrade all Python dependency groups and synchronize the environment"
+    cmds:
+      - task: lock:upgrade
+      - uv sync --locked --all-groups
+
  prepare:
    desc: "Set up engine .env from template"
    deps: [install]
    cmds:
-      - uv run scripts/setup_env.py
+      - uv run --locked --group engine --group engine-dev scripts/setup_env.py
    sources:
      - scripts/setup_env.py
    generates:
@@ -33,7 +60,7 @@ tasks:
    env:
      PYTHONUNBUFFERED: "1"
    cmds:
-      - uv run uvicorn stirling.api.app:app --host 0.0.0.0 --port {{.PORT}} --workers "${STIRLING_ENGINE_WORKERS:-4}"
+      - uv run --locked --group engine uvicorn stirling.api.app:app --host 0.0.0.0 --port {{.PORT}} --workers "${STIRLING_ENGINE_WORKERS:-4}"

  dev:
    desc: "Start engine dev server with hot reload"
@@ -45,43 +72,43 @@ tasks:
    env:
      PYTHONUNBUFFERED: "1"
    cmds:
-      - uv run uvicorn stirling.api.app:app --host 0.0.0.0 --port {{.PORT}} --reload
+      - uv run --locked --group engine --group engine-dev uvicorn stirling.api.app:app --host 0.0.0.0 --port {{.PORT}} --reload

  lint:
    desc: "Run linting"
    deps: [install]
    cmds:
-      - uv run ruff check .
+      - uv run --locked --group engine --group engine-dev ruff check .

  lint:fix:
    desc: "Auto-fix lint issues"
    deps: [install]
    cmds:
-      - uv run ruff check . --fix
+      - uv run --locked --group engine --group engine-dev ruff check . --fix

  format:
    desc: "Auto-fix code formatting"
    deps: [install]
    cmds:
-      - uv run ruff format .
+      - uv run --locked --group engine --group engine-dev ruff format .

  format:check:
    desc: "Check code formatting"
    deps: [install]
    cmds:
-      - uv run ruff format . --diff
+      - uv run --locked --group engine --group engine-dev ruff format . --diff

  typecheck:
    desc: "Run type checking"
    deps: [install]
    cmds:
-      - uv run pyright . --warnings
+      - uv run --locked --group engine --group engine-dev pyright . --warnings

  test:
    desc: "Run tests"
    deps: [prepare]
    cmds:
-      - uv run pytest tests
+      - uv run --locked --group engine --group engine-dev pytest tests

  fix:
    desc: "Auto-fix lint + format"
@@ -102,12 +129,19 @@ tasks:
    desc: "Generate tool_models.py from Java OpenAPI spec (SwaggerDoc.json)"
    deps: [install, ":backend:swagger"]
    cmds:
-      - uv run python scripts/generate_tool_models.py --spec ../SwaggerDoc.json --output src/stirling/models/tool_models.py
+      - uv run --locked --group engine --group engine-dev python scripts/generate_tool_models.py --spec ../SwaggerDoc.json --output src/stirling/models/tool_models.py --io-output src/stirling/models/tool_io.py
    sources:
      - ../SwaggerDoc.json
      - scripts/generate_tool_models.py
    generates:
      - src/stirling/models/tool_models.py
+      - src/stirling/models/tool_io.py
+
+  tool-models:check:
+    desc: "Fail if the committed tool models are out of date"
+    deps: [install, ":backend:swagger"]
+    cmds:
+      - uv run --locked --group engine --group engine-dev python scripts/generate_tool_models.py --spec ../SwaggerDoc.json --output src/stirling/models/tool_models.py --io-output src/stirling/models/tool_io.py --check

  clean:
    desc: "Clean build artifacts"
@@ -211,11 +211,13 @@ tasks:
      - npx vitest run --config .storybook/vitest.config.ts {{.CLI_ARGS}}

  storybook:a11y:
-    desc: "a11y regression gate over every story: fail only on NEW axe violations"
+    desc: "a11y regression gate over every story, light and dark: fail only on NEW axe violations"
    deps: [prepare, storybook:browser]
    cmds:
      - node .storybook/a11y-scan.mjs
      - node .storybook/a11y-check.mjs --in .a11y-scan --manifest .a11y-scan/manifest.txt
+      - SCAN_THEME=dark node .storybook/a11y-scan.mjs
+      - node .storybook/a11y-check.mjs --in .a11y-scan --manifest .a11y-scan/manifest.txt --baseline .storybook/a11y-baseline.dark.json

  storybook:a11y:changed:
    desc: "a11y gate over the stories this branch affects (default base origin/main)"
@@ -244,13 +246,17 @@ tasks:
          fi
          node .storybook/a11y-scan.mjs {{.CHANGED}}
          node .storybook/a11y-check.mjs --in .a11y-scan --manifest .a11y-scan/manifest.txt
+          SCAN_THEME=dark node .storybook/a11y-scan.mjs {{.CHANGED}}
+          node .storybook/a11y-check.mjs --in .a11y-scan --manifest .a11y-scan/manifest.txt --baseline .storybook/a11y-baseline.dark.json

  storybook:a11y:record:
-    desc: "Re-record the a11y baseline (run after intentionally fixing/adding violations)"
+    desc: "Re-record both a11y baselines (run after intentionally fixing/adding violations)"
    deps: [prepare, storybook:browser]
    cmds:
      - node .storybook/a11y-scan.mjs
      - node .storybook/a11y-check.mjs --in .a11y-scan --manifest .a11y-scan/manifest.txt --record
+      - SCAN_THEME=dark node .storybook/a11y-scan.mjs
+      - node .storybook/a11y-check.mjs --in .a11y-scan --manifest .a11y-scan/manifest.txt --record --baseline .storybook/a11y-baseline.dark.json

  # ============================================================
  # Code quality
@@ -260,8 +266,7 @@ tasks:
    desc: "Run linting"
    deps: [install]
    cmds:
-      - task: lint:eslint
-      - task: lint:dpdm
+      - task: lint:oxlint
      - task: lint:colors
      - task: lint:css

@@ -290,25 +295,17 @@ tasks:
    cmds:
      - node editor/scripts/lint/theme-lint.mjs contrast

-  lint:eslint:
-    desc: "Run ESLint linting"
+  lint:oxlint:
+    desc: "Run oxlint linting"
    deps: [install]
    cmds:
-      - npx eslint --max-warnings=0
-
-  lint:dpdm:
-    desc: "Run circular import linting"
-    deps: [install]
-    cmds:
-      # Globs so dpdm walks the whole tree. dpdm expands the braces itself, so this is
-      # shell-agnostic. Covers the whole editor tree, including the portal layer.
-      - npx dpdm "editor/src/**/*.{ts,tsx}" --circular --no-warning --no-tree --exit-code circular:1
+      - npx oxlint --config oxlint.config.ts --max-warnings=0

  lint:fix:
    desc: "Auto-fix lint issues"
    deps: [install]
    cmds:
-      - npx eslint --fix
+      - npx oxlint --config oxlint.config.ts --fix

  format:
    desc: "Auto-fix code formatting"
@@ -498,18 +495,19 @@ tasks:
    desc: "Generate tool API types from the Java OpenAPI spec"
    deps: [install, ":backend:swagger"]
    cmds:
-      - npx tsx editor/scripts/generate-tool-api-types.mts --spec ../SwaggerDoc.json --output editor/src/core/types/toolApiTypes.ts
+      - npx tsx editor/scripts/generate-tool-api-types.mts --spec ../SwaggerDoc.json --output editor/src/core/types/toolApiTypes.ts --io-output editor/src/core/types/toolIO.ts
    sources:
      - editor/scripts/generate-tool-api-types.mts
      - ../SwaggerDoc.json
    generates:
      - editor/src/core/types/toolApiTypes.ts
+      - editor/src/core/types/toolIO.ts

  tool-models:check:
    desc: "Fail if committed tool API types are out of date"
    deps: [install, ":backend:swagger"]
    cmds:
-      - npx tsx editor/scripts/generate-tool-api-types.mts --spec ../SwaggerDoc.json --output editor/src/core/types/toolApiTypes.ts --check
+      - npx tsx editor/scripts/generate-tool-api-types.mts --spec ../SwaggerDoc.json --output editor/src/core/types/toolApiTypes.ts --io-output editor/src/core/types/toolIO.ts --check

  licenses:generate:
    desc: "Generate frontend license report"
@@ -45,6 +45,10 @@ vars:
  # which owns the version and caches the binary here.
  GITLEAKS_BIN: '.task/bin/gitleaks{{if eq OS "windows"}}.exe{{end}}'

+env:
+  # Keep repository-wide checks isolated from the engine runtime environment.
+  UV_PROJECT_ENVIRONMENT: '.venv-pre-commit'
+
 tasks:
  default:
    desc: "Check formatting, spelling, and secrets across the repo"
@@ -76,19 +80,19 @@ tasks:
    desc: "Install the pinned pre-commit Python tools"
    run: once
    cmds:
-      - uv sync --project scripts/pre-commit --locked
+      - uv sync --project engine --locked --group pre-commit
    sources:
-      - scripts/pre-commit/uv.lock
-      - scripts/pre-commit/pyproject.toml
+      - engine/uv.lock
+      - engine/pyproject.toml
    status:
-      - test -d scripts/pre-commit/.venv
+      - test -d engine/.venv-pre-commit

  clean:
-    desc: "Remove the cached gitleaks binary and the tool virtualenv"
+    desc: "Remove the cached gitleaks binary and the pre-commit virtualenv"
    cmds:
-      - cmd: rm -rf scripts/pre-commit/.venv .task/bin/gitleaks
+      - cmd: rm -rf engine/.venv-pre-commit .task/bin/gitleaks
        platforms: [linux, darwin]
-      - cmd: cmd /c "rmdir /s /q scripts\pre-commit\.venv & del /q .task\bin\gitleaks.exe"
+      - cmd: cmd /c "rmdir /s /q engine\.venv-pre-commit & del /q .task\bin\gitleaks.exe"
        platforms: [windows]
        ignore_error: true

@@ -97,26 +101,26 @@ tasks:
  ruff:
    deps: [install]
    cmds:
-      - uv run --project scripts/pre-commit --no-sync ruff check --line-length=127 {{if .FIX}}--fix {{end}}$(git ls-files {{.PY_FILES}})
+      - uv run --project engine --locked --group pre-commit ruff check --isolated --line-length=120 {{if .FIX}}--fix {{end}}$(git ls-files {{.PY_FILES}})

  ruff-format:
    deps: [install]
    cmds:
-      - uv run --project scripts/pre-commit --no-sync ruff format {{if .FIX}}{{else}}--check {{end}}$(git ls-files {{.PY_FILES}})
+      - uv run --project engine --locked --group pre-commit ruff format --isolated --line-length=120 {{if .FIX}}{{else}}--check {{end}}$(git ls-files {{.PY_FILES}})

  codespell:
    deps: [install]
    cmds:
-      - uv run --project scripts/pre-commit --no-sync codespell --ignore-words-list=thirdParty,tabEl,tabEls,Sie,ist,fulfilment --quiet-level=2 $(git ls-files {{.SPELL_FILES}})
+      - uv run --project engine --locked --group pre-commit codespell --ignore-words-list=thirdParty,tabEl,tabEls,Sie,ist,fulfilment --quiet-level=2 $(git ls-files {{.SPELL_FILES}})

  toml-sort:
    deps: [install]
    cmds:
-      - uv run --project scripts/pre-commit --no-sync python scripts/pre-commit/sort_locale_toml.py {{if .FIX}}--fix {{end}}{{.LOCALE_TOML}}
+      - uv run --project engine --locked --group pre-commit python scripts/pre-commit/sort_locale_toml.py {{if .FIX}}--fix {{end}}{{.LOCALE_TOML}}

  whitespace:
    cmds:
-      - uv run --no-project python scripts/pre-commit/whitespace.py {{if .FIX}}--fix {{end}}{{.WS_FILES}}
+      - uv run --project engine --locked --group pre-commit python scripts/pre-commit/whitespace.py {{if .FIX}}--fix {{end}}{{.WS_FILES}}

  gitleaks:
    deps: [gitleaks-bin]
@@ -130,4 +134,4 @@ tasks:
    internal: true
    desc: "Ensure the pinned, checksum-verified gitleaks binary is cached in .task/bin"
    cmds:
-      - uv run --no-project python scripts/pre-commit/install_gitleaks.py
+      - uv run --project engine --locked --group pre-commit python scripts/pre-commit/install_gitleaks.py
@@ -2,8 +2,6 @@
  "recommendations": [
    "elagil.pre-commit-helper", // Support for pre-commit hooks to enforce code quality
    "josevseb.google-java-format-for-vs-code", // Google Java code formatter to follow the Google Java Style Guide
-    "ms-python.black-formatter", // Python code formatter using Black
-    "ms-python.flake8", // Flake8 linter for Python to enforce code quality
    "ms-python.python", // Official Microsoft Python extension with IntelliSense, debugging, and Jupyter support
    "ms-vscode-remote.vscode-remote-extensionpack", // Remote Development Pack for SSH, WSL, and Containers
    // "Oracle.oracle-java", // Oracle Java extension with additional features for Java development
@@ -19,6 +17,7 @@
    "yzhang.markdown-all-in-one", // Markdown All-in-One extension for enhanced Markdown editing
    "stylelint.vscode-stylelint", // Stylelint extension for CSS and SCSS linting
    "redhat.vscode-yaml", // YAML extension for Visual Studio Code
-    "dbaeumer.vscode-eslint", // ESLint extension for TypeScript linting
+    "tamasfe.even-better-toml", // TOML language support and formatting
+    "oxc.oxc-vscode", // Oxc (oxlint) extension for JavaScript/TypeScript linting
  ]
 }
@@ -20,8 +20,9 @@
    "editor.defaultFormatter": "vscode.json-language-features"
  },
  "[python]": {
-    "editor.defaultFormatter": "ms-python.black-formatter"
+    "editor.defaultFormatter": "charliermarsh.ruff"
  },
+  "ruff.configuration": "${workspaceFolder}/engine/pyproject.toml",
  "[gradle-kotlin-dsl]": {
    "editor.defaultFormatter": "vscjava.vscode-gradle"
  },
@@ -192,7 +192,7 @@ What goes where:
 - **saas** — web-only: Supabase web auth, AuthCallback, avatar canvas, `window.location`.
 - **desktop** — Tauri-only: keyring authService, tauriHttpClient, native files/windows, backend routing.

-`cloud/` MUST NOT import `@supabase/*`, `@tauri-apps/*`, raw `fetch`, `window.location`, `localStorage`, `sessionStorage`, or `import.meta.env.VITE_*` (enforced by ESLint). It reaches platform-specific things only via `@app/*` seams: `services/apiClient`, `auth/session.getAccessToken`, `auth/supabase`, `platform/openExternal`, `services/billing`, `hooks/useSaaSMode` — each provided per-platform in `saas/` and `desktop/`.
+`cloud/` MUST NOT import `@supabase/*`, `@tauri-apps/*`, raw `fetch`, `window.location`, `localStorage`, `sessionStorage`, or `import.meta.env.VITE_*` (all enforced by the linter). It reaches platform-specific things only via `@app/*` seams: `services/apiClient`, `auth/session.getAccessToken`, `auth/supabase`, `platform/openExternal`, `services/billing`, `hooks/useSaaSMode` — each provided per-platform in `saas/` and `desktop/`.

 Rule of thumb — **move, don't copy**: share via `cloud/`, override by shadowing the same `@app/*` path in a leaf (`saas/` or `desktop/`).

@@ -21,7 +21,7 @@ This project uses [Task](https://taskfile.dev/) as a unified command runner. Aft

 1. Install the `task` CLI: https://taskfile.dev/installation/
 2. Run `task install` to install all dependencies
-3. Run `task dev` to start backend + frontend
+3. Run `task dev` to start backend + frontend or `task desktop:dev` to start the desktop application
 4. Run `task check` before submitting a PR

 Run `task --list` to see all available commands.
@@ -158,7 +158,7 @@ Stirling-PDF/
 │   │   │   └── locales/       # Internationalization files (JSON)
 │   │   └── vite.config.ts     # Vite configuration
 │   ├── package.json       # Shared workspace dependencies
-│   └── eslint.config.mjs  # Shared lint config
+│   └── oxlint.config.ts   # Shared lint config
 ├── customFiles/           # Custom static files and templates (generated at runtime used to replace existing files)
 ├── docs/                  # Documentation files
 ├── exampleYmlFiles/       # Example YAML configuration files
@@ -504,7 +504,8 @@ For Stirling 2.0, new features are built as React components:
 1. **Create a New Controller:**
   - Create a new Java class in the `stirling-pdf/src/main/java/stirling/software/SPDF/controller/api` directory.
   - Annotate the class with `@RestController` and `@RequestMapping` to define the API endpoint.
-   - Ensure to add API documentation annotations like `@Tag(name = "General", description = "General APIs")` and `@Operation(summary = "Crops a PDF document", description = "This operation takes an input PDF file and crops it according to the given coordinates. Input:PDF Output:PDF Type:SISO")`.
+   - Ensure to add API documentation annotations like `@Tag(name = "General", description = "General APIs")` and `@Operation(summary = "Crops a PDF document", description = "This operation takes an input PDF file and crops it according to the given coordinates.")`.
+   - If the endpoint transforms a document, declare what it accepts and produces with `@ToolIO`, for example `@ToolIO(produces = ToolFormat.PDF)`. This is what lets a pipeline containing the step be checked before it runs, so a chain that cannot work is caught in the builder rather than part-way through a job. Endpoints under the tool namespaces are required to carry it - `ToolIODeclarationCoverageTest` fails the build otherwise. See [Declaring tool inputs and outputs](#declaring-tool-inputs-and-outputs).

   ```java
   package stirling.software.SPDF.controller.api;
@@ -578,6 +579,38 @@ For Stirling 2.0, new features are built as React components:
  }
  ```

+### Declaring tool inputs and outputs
+
+An endpoint that transforms a document declares what it accepts and produces with `@ToolIO`. This is the single source of truth: it is published into the OpenAPI spec as an `x-stirling-io` extension, and generated from there into the frontend (`toolIO.ts`) and the AI engine (`tool_io.py`). A pipeline can therefore be checked while it is being edited, instead of failing part-way through a job.
+
+```java
+@ToolIO(produces = ToolFormat.PDF)
+```
+
+`accepts` defaults to `{ ToolFormat.PDF }` and `arity` to `ToolArity.SISO`, so most tools only declare what they produce.
+
+- **`ToolFormat`** is the kind of file: `PDF`, `PDF_ENCRYPTED`, `IMAGE`, `ZIP`, `WORD`, `PPT`, `EXCEL`, `CSV`, `HTML`, `XML`, `JSON`, `TEXT`, `MARKDOWN`, `JAVASCRIPT`, `EBOOK`, `EMAIL`, `POSTSCRIPT`, `VIDEO`, `CBZ`, `CBR`, plus `ANY` (accepts or produces anything) and `NONE` (returns a report, not a file). Encryption is a format rather than a flag, so the default `accepts = PDF` means an endpoint rejects an encrypted PDF unless it opts in.
+- **`ToolArity`** is how many files go in and out: `SISO`, `SIMO`, `MISO`, `MIMO`. This axis carries ZIP-as-transport. A splitter is `produces = PDF, arity = SIMO`, and the caller unpacks the archive; an endpoint whose deliverable really is an archive declares `produces = ZIP` with a single-output arity and stays packed.
+
+When the output depends on a parameter, declare the exception as a case rather than picking one answer. Add Password produces an encrypted PDF unless both passwords are blank, in which case it has only set permissions:
+
+```java
+@ToolIO(
+        produces = ToolFormat.PDF_ENCRYPTED,
+        cases =
+                @ToolIOCase(
+                        when = {
+                            @ToolIOWhen(param = "password", matches = ""),
+                            @ToolIOWhen(param = "ownerPassword", matches = "")
+                        },
+                        produces = ToolFormat.PDF,
+                        arity = ToolArity.SISO))
+```
+
+Every condition in a `when` must hold for the case to apply, and `matches` is compared as a string, case-insensitively, with an empty string matching an absent or blank value. If a case reads a parameter that is not set yet, the output is reported as uncertain and the chain warns rather than erroring.
+
+Endpoints under the tool namespaces must carry a declaration; `ToolIODeclarationCoverageTest` fails the build for any that does not, with a short allowlist for endpoints that manage a session, a device or a stored resource rather than transforming a document. The matching rules are implemented three times (Java `ToolChainValidator`, `toolIOCompat.ts`, `tool_io_compat.py`) and pinned to the same answers by the shared fixtures in `testing/tool-io-cases.json`, so a behaviour change belongs in that file first.
+
 ## Adding New Translations to Existing Language Files in Stirling-PDF

 When adding a new feature or modifying existing ones in Stirling-PDF, you'll need to add new translation entries to the existing language files. Here's a step-by-step guide:
@@ -194,6 +194,12 @@ tasks:
      - task: frontend:tool-models
      - task: engine:tool-models

+  tool-models:check:
+    desc: "Fail if any committed API model is out of date"
+    cmds:
+      - task: frontend:tool-models:check
+      - task: engine:tool-models:check
+
  # ============================================================
  # Quality Gate
  # ============================================================
@@ -32,6 +32,14 @@
      "moduleName": ".*",
      "moduleLicense": "BSD-4 License"
    },
+    {
+      "moduleName": ".*",
+      "moduleLicense": "Revised BSD"
+    },
+    {
+      "moduleName": ".*",
+      "moduleLicense": "ISC"
+    },
    {
      "moduleName": ".*",
      "moduleLicense": "MIT"
@@ -48,6 +56,10 @@
      "moduleName": ".*",
      "moduleLicense": "MIT-0"
    },
+    {
+      "moduleName": ".*",
+      "moduleLicense": "MIT license"
+    },
    {
      "moduleName": "com.github.jai-imageio:jai-imageio-core",
      "moduleLicense": "LICENSE.txt"
@@ -144,6 +156,14 @@
      "moduleName": ".*",
      "moduleLicense": "GNU GENERAL PUBLIC LICENSE, Version 2 + Classpath Exception"
    },
+    {
+      "moduleName": ".*",
+      "moduleLicense": "GNU Lesser Public License"
+    },
+    {
+      "moduleName": ".*",
+      "moduleLicense": "The GNU Lesser General Public License"
+    },
    {
      "moduleName": "com.martiansoftware:jsap",
      "moduleLicense": "LGPL"
@@ -212,14 +232,6 @@
      "moduleName": "com.google.re2j:re2j",
      "moduleLicense": "Go License"
    },
-    {
-      "moduleName": "com.hubspot:algebra",
-      "moduleLicense": null
-    },
-    {
-      "moduleName": "com.hubspot.immutables:immutables-exceptions",
-      "moduleLicense": null
-    },
    {
      "moduleName": ".*",
      "moduleLicense": "UnRar License"
@@ -10,19 +10,19 @@ dependencies {
    api 'com.fathzer:javaluator:3.0.6'
    api 'com.posthog.java:posthog:1.2.0'
    api "org.apache.commons:commons-lang3:${commonsLang3}"
-    api 'com.drewnoakes:metadata-extractor:2.20.0' // Image metadata extractor
+    api 'com.drewnoakes:metadata-extractor:2.21.0' // Image metadata extractor
    api 'com.vladsch.flexmark:flexmark-html2md-converter:0.64.8'
    api "org.apache.pdfbox:pdfbox:$pdfboxVersion"
    api "org.apache.pdfbox:pdfbox-io:$pdfboxVersion"
    api "org.apache.pdfbox:xmpbox:$pdfboxVersion"
    api "org.apache.pdfbox:preflight:$pdfboxVersion"
-    api 'com.github.junrar:junrar:7.6.0' // RAR archive support for CBR files
+    api 'com.github.junrar:junrar:8.0.0' // RAR archive support for CBR files
    api 'jakarta.servlet:jakarta.servlet-api:6.1.0'
    api 'org.snakeyaml:snakeyaml-engine:3.0.1'
    api "org.springdoc:springdoc-openapi-starter-webmvc-ui:3.0.3"
    // Simple Java Mail for EML/MSG parsing (replaces direct Angus Mail usage)
-    api 'org.simplejavamail:simple-java-mail:8.12.6'
-    api 'org.simplejavamail:outlook-module:8.12.6' // MSG file support
+    api 'org.simplejavamail:simple-java-mail:9.2.0'
+    api 'org.simplejavamail:outlook-module:9.2.0' // MSG file support
    api 'jakarta.mail:jakarta.mail-api:2.1.5'
    runtimeOnly 'org.eclipse.angus:angus-mail:2.0.5'

@@ -36,18 +36,24 @@ dependencies {

    api "com.stirling:jpdfium:${jpdfiumVersion}"

-    // -PjpdfiumPlatforms=all|<csv of linux-x64,linux-arm64,darwin-x64,darwin-arm64,windows-x64>
+    // -PjpdfiumPlatforms=all|none|<csv of linux-x64,linux-arm64,darwin-x64,darwin-arm64,windows-x64>
+    // 'none' skips natives entirely (windows-arm64 builds, until JPDFium ships that platform).
    def jpdfiumPlatformsProp = (project.findProperty('jpdfiumPlatforms') ?: 'all').toString().trim()
    def jpdfiumAllPlatforms = ['linux-x64', 'linux-arm64', 'darwin-x64', 'darwin-arm64', 'windows-x64']
-    def jpdfiumPlatforms = jpdfiumPlatformsProp == 'all'
-            ? jpdfiumAllPlatforms
-            : jpdfiumPlatformsProp.split(',').collect { it.trim() }.findAll { it }
+    def jpdfiumPlatforms
+    if (jpdfiumPlatformsProp == 'all') {
+        jpdfiumPlatforms = jpdfiumAllPlatforms
+    } else if (jpdfiumPlatformsProp == 'none') {
+        jpdfiumPlatforms = []
+    } else {
+        jpdfiumPlatforms = jpdfiumPlatformsProp.split(',').collect { it.trim() }.findAll { it }
+    }
    def jpdfiumInvalid = jpdfiumPlatforms.findAll { !jpdfiumAllPlatforms.contains(it) }
    if (jpdfiumInvalid) {
        throw new GradleException("Unknown jpdfiumPlatforms value(s): ${jpdfiumInvalid.join(', ')}. " +
-                "Valid: ${jpdfiumAllPlatforms.join(', ')} or 'all'.")
+                "Valid: ${jpdfiumAllPlatforms.join(', ')}, 'all' or 'none'.")
    }
-    logger.lifecycle("JPDFium native platforms: ${jpdfiumPlatforms.join(', ')}")
+    logger.lifecycle("JPDFium native platforms: ${jpdfiumPlatforms ? jpdfiumPlatforms.join(', ') : 'none'}")
    jpdfiumPlatforms.each { platform ->
        runtimeOnly "com.stirling:jpdfium-natives-${platform}:${jpdfiumVersion}"
    }
@@ -0,0 +1,109 @@
+package stirling.software.common.config.swagger;
+
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springdoc.core.customizers.GlobalOpenApiCustomizer;
+import org.springdoc.core.customizers.GlobalOperationCustomizer;
+import org.springframework.stereotype.Component;
+import org.springframework.web.method.HandlerMethod;
+
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.Operation;
+
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
+import stirling.software.common.model.tool.ToolIOCase;
+import stirling.software.common.model.tool.ToolIOWhen;
+import stirling.software.common.service.ToolIOParameterDefaults;
+
+/**
+ * Publishes each {@link ToolIO} into the spec as {@code x-stirling-io}, which is how the frontend
+ * and the AI engine get it.
+ *
+ * <p>Also appends the {@code Input:/Output:/Type:} line the docs used to carry by hand, so the
+ * published text is unchanged without anyone maintaining it.
+ */
+@Component
+public class ToolIOOperationCustomizer
+        implements GlobalOperationCustomizer, GlobalOpenApiCustomizer {
+
+    public static final String EXTENSION_NAME = "x-stirling-io";
+    public static final String VOCABULARY_EXTENSION_NAME = "x-stirling-io-vocabulary";
+
+    // Published separately from the declarations: generators need the full vocabulary for their
+    // enums, and deriving it from what is present would shrink it when an endpoint is disabled.
+    @Override
+    public void customise(OpenAPI openApi) {
+        Map<String, Object> vocabulary = new LinkedHashMap<>();
+        vocabulary.put("formats", names(ToolFormat.values()));
+        vocabulary.put("arities", names(ToolArity.values()));
+        openApi.addExtension(VOCABULARY_EXTENSION_NAME, vocabulary);
+    }
+
+    @Override
+    public Operation customize(Operation operation, HandlerMethod handlerMethod) {
+        ToolIO declaration = handlerMethod.getMethodAnnotation(ToolIO.class);
+        if (declaration == null) {
+            return operation;
+        }
+        operation.addExtension(EXTENSION_NAME, toExtension(declaration, handlerMethod.getMethod()));
+        operation.setDescription(appendSummaryLine(operation.getDescription(), declaration));
+        return operation;
+    }
+
+    private static Map<String, Object> toExtension(ToolIO declaration, Method handler) {
+        Map<String, Object> extension = new LinkedHashMap<>();
+        extension.put("accepts", names(declaration.accepts()));
+        extension.put("produces", declaration.produces().name());
+        extension.put("arity", declaration.arity().name());
+        if (declaration.cases().length > 0) {
+            extension.put("cases", cases(declaration, handler));
+        }
+        return extension;
+    }
+
+    private static List<Map<String, Object>> cases(ToolIO declaration, Method handler) {
+        return Arrays.stream(declaration.cases()).map(rule -> toCase(rule, handler)).toList();
+    }
+
+    private static Map<String, Object> toCase(ToolIOCase rule, Method handler) {
+        Map<String, Object> entry = new LinkedHashMap<>();
+        entry.put("when", Arrays.stream(rule.when()).map(c -> toCondition(c, handler)).toList());
+        entry.put("produces", rule.produces().name());
+        entry.put("arity", rule.arity().name());
+        return entry;
+    }
+
+    private static Map<String, Object> toCondition(ToolIOWhen condition, Method handler) {
+        Map<String, Object> entry = new LinkedHashMap<>();
+        entry.put("param", condition.param());
+        entry.put("matches", List.of(condition.matches()));
+        // The default the endpoint uses when this parameter is absent, so a step that never sends
+        // it still resolves. Omitted when the parameter is required with none.
+        ToolIOParameterDefaults.resolve(handler, condition.param())
+                .ifPresent(value -> entry.put("default", value));
+        return entry;
+    }
+
+    private static List<String> names(Enum<?>[] values) {
+        return Arrays.stream(values).map(Enum::name).toList();
+    }
+
+    private static String appendSummaryLine(String description, ToolIO declaration) {
+        String summary =
+                "Input:"
+                        + String.join("/", names(declaration.accepts()))
+                        + " Output:"
+                        + declaration.produces().name()
+                        + " Type:"
+                        + declaration.arity().name();
+        return description == null || description.isBlank()
+                ? summary
+                : description.trim() + " " + summary;
+    }
+}
@@ -251,6 +251,21 @@ public class ApplicationProperties {
         */
        private boolean allowPrivateS3Endpoints = false;

+        /**
+         * Whether a network source's host (SFTP, FTP, or SMB) may resolve to a loopback,
+         * link-local, or private address. Off by default so a connection cannot be pointed at
+         * internal services; enable for an on-network file server (e.g. an internal SFTP drop or a
+         * Samba share).
+         */
+        private boolean allowPrivateNetworkSources = false;
+
+        /**
+         * Hostnames (exact, case-insensitive) that a network source may use even when they resolve
+         * to a private or local address and {@code allowPrivateNetworkSources} is off. Lets shared
+         * infra allow one named on-prem file server without opening every internal host.
+         */
+        private List<String> allowedPrivateNetworkHosts = new java.util.ArrayList<>();
+
        /**
         * Whether an API/Purview/ConsignO integration's base URL may resolve to a loopback,
         * link-local, or private address. Off by default: unlike S3 connections, any user may
@@ -0,0 +1,24 @@
+package stirling.software.common.model.tool;
+
+/**
+ * How many files an endpoint consumes and produces (Single/Multiple In, Single/Multiple Out).
+ *
+ * <p>This axis carries ZIP-as-transport: a multi-output endpoint returns its results zipped and the
+ * caller unpacks them, so {@code split-pages} is {@code produces = PDF, arity = SIMO} rather than
+ * naming a ZIP-of-PDF format. An endpoint whose deliverable really is an archive declares {@link
+ * ToolFormat#ZIP} with a single-output arity and stays packed.
+ */
+public enum ToolArity {
+    SISO,
+    SIMO,
+    MISO,
+    MIMO;
+
+    public boolean isMultiInput() {
+        return this == MISO || this == MIMO;
+    }
+
+    public boolean isMultiOutput() {
+        return this == SIMO || this == MIMO;
+    }
+}
@@ -0,0 +1,47 @@
+package stirling.software.common.model.tool;
+
+/**
+ * One problem found while checking a chain, against the step that cannot run. {@code code} is
+ * stable so the frontend can pick its own wording; {@code message} is an English fallback.
+ */
+public record ToolDiagnostic(int stepIndex, Severity severity, String code, String message) {
+
+    public enum Severity {
+        /** The chain cannot run as configured. Only this should block a save. */
+        ERROR,
+        /** May not run, depending on configuration or file content. */
+        WARN,
+        /** Worth knowing but not a problem, such as a step running once per file. */
+        INFO
+    }
+
+    /** The step declares no {@link ToolIO}, so nothing past it can be checked. */
+    public static final String UNDECLARED = "undeclared-operation";
+
+    /** The previous step's output is not a format this step accepts. */
+    public static final String FORMAT_MISMATCH = "format-mismatch";
+
+    /** The previous step's output depends on a parameter that is not set yet. */
+    public static final String OUTPUT_UNCERTAIN = "output-uncertain";
+
+    /** The pipeline's input files are not a format the first step accepts. */
+    public static final String SOURCE_MISMATCH = "source-mismatch";
+
+    /** The previous step emits several files and this one runs once per file. */
+    public static final String FAN_OUT = "fan-out";
+
+    /** The previous step emits several files and this one consumes them in a single call. */
+    public static final String FAN_IN = "fan-in";
+
+    public static ToolDiagnostic error(int stepIndex, String code, String message) {
+        return new ToolDiagnostic(stepIndex, Severity.ERROR, code, message);
+    }
+
+    public static ToolDiagnostic warn(int stepIndex, String code, String message) {
+        return new ToolDiagnostic(stepIndex, Severity.WARN, code, message);
+    }
+
+    public static ToolDiagnostic info(int stepIndex, String code, String message) {
+        return new ToolDiagnostic(stepIndex, Severity.INFO, code, message);
+    }
+}
@@ -0,0 +1,62 @@
+package stirling.software.common.model.tool;
+
+import java.util.List;
+
+import lombok.Getter;
+
+/**
+ * The kind of file a tool endpoint consumes or produces.
+ *
+ * <p>Encryption is its own format rather than a separate attribute, so the endpoints accepting only
+ * {@link #PDF} reject an encrypted one without declaring anything.
+ *
+ * <p>Extensions are a lossy projection used for run-time file checks: {@link #PDF} and {@link
+ * #PDF_ENCRYPTED} share {@code pdf}, because a filename cannot tell you whether a PDF is encrypted.
+ */
+@Getter
+public enum ToolFormat {
+    PDF("pdf"),
+    PDF_ENCRYPTED("pdf"),
+
+    // Vector formats are folded in: the extension set has always included svg/eps, and splitting
+    // them out would make chains that run fine today report as broken.
+    IMAGE("png", "jpg", "jpeg", "gif", "webp", "bmp", "tif", "tiff", "svg", "psd", "ai", "eps"),
+
+    /**
+     * An archive that is itself the deliverable. Multiple results use {@link ToolArity} instead.
+     */
+    ZIP("zip", "rar", "7z", "tar", "gz", "bz2", "xz", "lz", "lzma", "z"),
+
+    WORD("doc", "docx", "odt", "rtf"),
+    PPT("ppt", "pptx", "odp"),
+    EXCEL("xls", "xlsx", "ods"),
+    CSV("csv"),
+    HTML("html", "htm", "xhtml"),
+    XML("xml", "xsd", "xsl"),
+    JSON("json"),
+    TEXT("txt", "text", "md", "markdown"),
+    MARKDOWN("md", "markdown"),
+    JAVASCRIPT("js", "jsx"),
+    EBOOK("epub", "mobi", "azw3", "fb2", "txt", "docx"),
+    EMAIL("eml", "msg"),
+    POSTSCRIPT("ps", "eps"),
+
+    PCL("pcl", "pxl"),
+    XPS("xps", "oxps"),
+
+    VIDEO("mp4", "webm", "avi", "mov", "mkv"),
+    CBZ("cbz"),
+    CBR("cbr"),
+
+    /** Never reported as incompatible. */
+    ANY(),
+
+    /** A report or a status rather than a document. */
+    NONE();
+
+    private final List<String> extensions;
+
+    ToolFormat(String... extensions) {
+        this.extensions = List.of(extensions);
+    }
+}
@@ -0,0 +1,30 @@
+package stirling.software.common.model.tool;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * What a tool endpoint consumes and produces, so a chain of steps can be checked before it runs.
+ *
+ * <p>The single source of truth: read off the handler method by {@code ToolIORegistry}, published
+ * into the OpenAPI spec as {@code x-stirling-io}, and generated from there into the frontend and
+ * the AI engine.
+ */
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface ToolIO {
+
+    /** Defaulting to a plain PDF is what makes an ordinary endpoint reject an encrypted one. */
+    ToolFormat[] accepts() default {ToolFormat.PDF};
+
+    ToolFormat produces();
+
+    ToolArity arity() default ToolArity.SISO;
+
+    /** Overrides for an output that depends on a parameter; first match wins. */
+    ToolIOCase[] cases() default {};
+}
@@ -0,0 +1,22 @@
+package stirling.software.common.model.tool;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * An output that applies when every condition in {@link #when()} holds.
+ *
+ * <p>Conditions are ANDed because the interesting branches turn on more than one parameter: Add
+ * Password only leaves the document unencrypted when both passwords are absent.
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface ToolIOCase {
+
+    ToolIOWhen[] when();
+
+    ToolFormat produces();
+
+    ToolArity arity();
+}
@@ -0,0 +1,19 @@
+package stirling.software.common.model.tool;
+
+import java.util.Map;
+import java.util.Optional;
+
+/**
+ * Supplies the {@link ToolIO} declaration for an endpoint path. An interface so a chain can be
+ * checked against a fixed set of declarations without standing up an application context.
+ */
+@FunctionalInterface
+public interface ToolIOSource {
+
+    Optional<ToolIOSpec> find(String operationPath);
+
+    static ToolIOSource of(Map<String, ToolIOSpec> specs) {
+        Map<String, ToolIOSpec> copy = Map.copyOf(specs);
+        return path -> Optional.ofNullable(copy.get(path));
+    }
+}
@@ -0,0 +1,134 @@
+package stirling.software.common.model.tool;
+
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** The runtime form of a {@link ToolIO} declaration, read off a handler method once at startup. */
+public record ToolIOSpec(
+        Set<ToolFormat> accepts, ToolFormat produces, ToolArity arity, List<Case> cases) {
+
+    /**
+     * @param paramDefault the value used when the parameter is absent, or null when it has no
+     *     default - an absent parameter then leaves the case unresolved rather than defaulted.
+     */
+    public record When(String param, List<String> matches, String paramDefault) {
+
+        boolean holdsFor(Object value) {
+            String normalised = normalise(value);
+            return matches.stream().anyMatch(match -> normalise(match).equals(normalised));
+        }
+    }
+
+    /** Supplies the default value a request parameter takes when a caller omits it. */
+    @FunctionalInterface
+    public interface ParameterDefaults {
+        Optional<String> defaultFor(String param);
+
+        ParameterDefaults NONE = param -> Optional.empty();
+    }
+
+    /**
+     * Both sides of a condition are normalised at comparison, not at construction: the declaration
+     * reaches the frontend and the engine as published data, and normalising only one side there
+     * would silently disagree with this one.
+     */
+    public static String normalise(Object value) {
+        return value == null ? "" : String.valueOf(value).trim().toLowerCase(Locale.ROOT);
+    }
+
+    public record Case(List<When> when, ToolFormat produces, ToolArity arity) {
+
+        public Case {
+            when = List.copyOf(when);
+        }
+    }
+
+    /** {@code certain} is false when a {@link Case} keys on a parameter whose value is unknown. */
+    public record Output(ToolFormat format, ToolArity arity, boolean certain) {}
+
+    public ToolIOSpec {
+        accepts = Set.copyOf(accepts);
+        cases = List.copyOf(cases);
+    }
+
+    public static ToolIOSpec from(ToolIO annotation) {
+        return from(annotation, ParameterDefaults.NONE);
+    }
+
+    public static ToolIOSpec from(ToolIO annotation, ParameterDefaults defaults) {
+        return new ToolIOSpec(
+                new LinkedHashSet<>(Arrays.asList(annotation.accepts())),
+                annotation.produces(),
+                annotation.arity(),
+                Arrays.stream(annotation.cases()).map(rule -> toCase(rule, defaults)).toList());
+    }
+
+    private static Case toCase(ToolIOCase rule, ParameterDefaults defaults) {
+        List<When> when = Arrays.stream(rule.when()).map(c -> toWhen(c, defaults)).toList();
+        return new Case(when, rule.produces(), rule.arity());
+    }
+
+    private static When toWhen(ToolIOWhen condition, ParameterDefaults defaults) {
+        return new When(
+                condition.param(),
+                List.of(condition.matches()),
+                defaults.defaultFor(condition.param()).orElse(null));
+    }
+
+    /**
+     * First matching {@link Case} wins. A parameter the caller omitted resolves to its declared
+     * default; only a parameter with no default leaves the output uncertain, since an unseen value
+     * might then have picked another branch.
+     *
+     * @param parameters the step's configured parameters, or null when not known
+     */
+    public Output resolveOutput(Map<String, Object> parameters) {
+        boolean sawUnknownParam = false;
+        for (Case rule : cases) {
+            boolean allHold = true;
+            for (When condition : rule.when()) {
+                Object value;
+                if (parameters != null && parameters.containsKey(condition.param())) {
+                    value = parameters.get(condition.param());
+                } else if (condition.paramDefault() != null) {
+                    value = condition.paramDefault();
+                } else {
+                    sawUnknownParam = true;
+                    allHold = false;
+                    continue;
+                }
+                allHold &= condition.holdsFor(value);
+            }
+            if (allHold) {
+                return new Output(rule.produces(), rule.arity(), true);
+            }
+        }
+        return new Output(produces, arity, !sawUnknownParam);
+    }
+
+    public Output resolveOutput() {
+        return resolveOutput(null);
+    }
+
+    public boolean acceptsFormat(ToolFormat format) {
+        return format == ToolFormat.ANY
+                || accepts.contains(ToolFormat.ANY)
+                || accepts.contains(format);
+    }
+
+    /** For run-time file checks. Empty means anything is accepted. */
+    public List<String> acceptedExtensions() {
+        if (accepts.contains(ToolFormat.ANY)) {
+            return List.of();
+        }
+        return accepts.stream()
+                .flatMap(format -> format.getExtensions().stream())
+                .distinct()
+                .toList();
+    }
+}
@@ -0,0 +1,18 @@
+package stirling.software.common.model.tool;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/** One condition on a request parameter, guarding a {@link ToolIOCase}. */
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface ToolIOWhen {
+
+    String param();
+
+    /**
+     * Compared as strings, case-insensitively. An empty string matches an absent or blank value.
+     */
+    String[] matches();
+}
@@ -983,7 +983,7 @@ public class PdfMarkdownConverter {
        ordered.sort(Comparator.comparingDouble((Line l) -> l.y).reversed());
        StringBuilder sb = new StringBuilder();
        for (Line l : ordered) {
-            if (sb.length() > 0) {
+            if (!sb.isEmpty()) {
                sb.append(' ');
            }
            sb.append(l.text);
@@ -17,7 +17,6 @@ import java.util.concurrent.Semaphore;
 import java.util.function.Consumer;

 import org.apache.pdfbox.Loader;
-import org.apache.pdfbox.examples.util.DeletingRandomAccessFile;
 import org.apache.pdfbox.io.IOUtils;
 import org.apache.pdfbox.io.MemoryUsageSetting;
 import org.apache.pdfbox.io.RandomAccessReadBufferedFile;
@@ -31,6 +30,7 @@ import org.springframework.web.multipart.MultipartFile;
 import lombok.extern.slf4j.Slf4j;

 import stirling.software.common.model.api.PDFFile;
+import stirling.software.common.util.DeletingRandomAccessFile;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.TempFileManager;

@@ -19,6 +19,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;

+import jakarta.annotation.PreDestroy;
 import jakarta.servlet.http.HttpServletRequest;

 import lombok.extern.slf4j.Slf4j;
@@ -63,6 +64,21 @@ public class JobExecutorService {
                "Job executor configured with effective timeout of {} ms", this.effectiveTimeoutMs);
    }

+    /** Stop the service-owned executor when the application context is closed or restarted. */
+    @PreDestroy
+    public void shutdown() {
+        log.debug("Shutting down job executor");
+        executor.shutdown();
+        try {
+            if (!executor.awaitTermination(5, TimeUnit.SECONDS)) {
+                executor.shutdownNow();
+            }
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+            executor.shutdownNow();
+        }
+    }
+
    public ResponseEntity<?> runJobGeneric(boolean async, Supplier<Object> work) {
        return runJobGeneric(async, work, -1);
    }
@@ -225,19 +225,21 @@ public class MobileScannerService {
                Path sessionDir = getSafeSessionDirectory(sessionId);
                if (Files.exists(sessionDir)) {
                    // Delete all files in session directory
-                    Files.walk(sessionDir)
-                            .sorted(
-                                    (a, b) ->
-                                            -a.compareTo(b)) // Reverse order to delete files before
-                            // directory
-                            .forEach(
-                                    path -> {
-                                        try {
-                                            Files.deleteIfExists(path);
-                                        } catch (IOException e) {
-                                            log.warn("Failed to delete file: {}", path, e);
-                                        }
-                                    });
+                    try (var paths = Files.walk(sessionDir)) {
+                        paths.sorted(
+                                        (a, b) ->
+                                                -a.compareTo(
+                                                        b)) // Reverse order to delete files before
+                                // directory
+                                .forEach(
+                                        path -> {
+                                            try {
+                                                Files.deleteIfExists(path);
+                                            } catch (IOException e) {
+                                                log.warn("Failed to delete file: {}", path, e);
+                                            }
+                                        });
+                    }
                }
                log.info("Deleted session: {}", sessionId);
            } catch (IllegalArgumentException e) {
@@ -48,6 +48,10 @@ public class TaskManager {
    @Value("${stirling.jobResultExpiryMinutes:30}")
    private int jobResultExpiryMinutes = 30;

+    /** Maximum age of a task that never reached a terminal state. */
+    @Value("${stirling.job.pendingExpiryMinutes:1440}")
+    private int pendingJobExpiryMinutes = 1440;
+
    private final FileStorage fileStorage;
    private final JobStore jobStore;
    private final ClusterBackplane clusterBackplane;
@@ -332,19 +336,32 @@ public class TaskManager {
        }
        LocalDateTime expiryThreshold =
                LocalDateTime.now().minus(jobResultExpiryMinutes, ChronoUnit.MINUTES);
+        LocalDateTime pendingExpiryThreshold =
+                LocalDateTime.now().minus(pendingJobExpiryMinutes, ChronoUnit.MINUTES);
        int removedCount = 0;

        try {
            for (Map.Entry<String, JobResult> entry : jobResults.entrySet()) {
                JobResult result = entry.getValue();

-                // Remove completed jobs that are older than the expiry threshold
-                if (result.isComplete()
-                        && result.getCompletedAt() != null
-                        && result.getCompletedAt().isBefore(expiryThreshold)) {
+                boolean expiredCompletedJob =
+                        result.isComplete()
+                                && result.getCompletedAt() != null
+                                && result.getCompletedAt().isBefore(expiryThreshold);
+                boolean abandonedPendingJob =
+                        !result.isComplete()
+                                && result.getCreatedAt() != null
+                                && result.getCreatedAt().isBefore(pendingExpiryThreshold);
+
+                // Remove old terminal results and abandoned pending jobs. Without the second
+                // branch, a client that starts a task and never completes it keeps its result in
+                // memory forever.
+                if (expiredCompletedJob || abandonedPendingJob) {

                    // Clean up file results
-                    cleanupJobFiles(result, entry.getKey());
+                    if (expiredCompletedJob) {
+                        cleanupJobFiles(result, entry.getKey());
+                    }

                    // Remove the job result
                    jobResults.remove(entry.getKey());
@@ -0,0 +1,168 @@
+package stirling.software.common.service;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+import org.springframework.stereotype.Service;
+
+import lombok.RequiredArgsConstructor;
+
+import stirling.software.common.model.tool.ToolDiagnostic;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIOSource;
+import stirling.software.common.model.tool.ToolIOSpec;
+
+/**
+ * Whether a chain of steps can run: what each produces against what the next accepts.
+ *
+ * <p>The frontend and the AI engine implement the same rules against their generated copies, so a
+ * chain can be checked without a round trip. {@code testing/tool-io-cases.json} pins all three to
+ * the same answers.
+ */
+@Service
+@RequiredArgsConstructor
+public class ToolChainValidator {
+
+    /** {@code parameters} may be null; only used to resolve an output that depends on one. */
+    public record Step(String operation, Map<String, Object> parameters) {}
+
+    private final ToolIOSource toolIO;
+
+    public List<ToolDiagnostic> validate(List<Step> steps) {
+        return validate(steps, null);
+    }
+
+    /**
+     * @param sourceFormat the format entering step one, or null when unknown
+     */
+    public List<ToolDiagnostic> validate(List<Step> steps, ToolFormat sourceFormat) {
+        List<ToolDiagnostic> diagnostics = new ArrayList<>();
+        ToolIOSpec.Output carried = null;
+
+        for (int i = 0; i < steps.size(); i++) {
+            Step step = steps.get(i);
+            Optional<ToolIOSpec> found = toolIO.find(step.operation());
+            if (found.isEmpty()) {
+                diagnostics.add(
+                        ToolDiagnostic.warn(
+                                i,
+                                ToolDiagnostic.UNDECLARED,
+                                "Step "
+                                        + step.operation()
+                                        + " does not declare what it accepts or produces, so the"
+                                        + " rest of the chain cannot be checked."));
+                // Nothing is known past an undeclared step.
+                carried = null;
+                continue;
+            }
+            ToolIOSpec spec = found.get();
+
+            // Only the first step is handed the pipeline's input. Every later step is handed the
+            // previous step's output, which is simply unknown once an undeclared step intervened -
+            // checking it against the input again would judge it on a format it never receives.
+            if (i == 0) {
+                checkSource(diagnostics, i, step, spec, sourceFormat);
+            } else if (carried != null) {
+                checkTransition(diagnostics, i, step, spec, carried);
+            }
+            carried = spec.resolveOutput(step.parameters());
+        }
+        return diagnostics;
+    }
+
+    public static boolean hasErrors(List<ToolDiagnostic> diagnostics) {
+        return diagnostics.stream().anyMatch(d -> d.severity() == ToolDiagnostic.Severity.ERROR);
+    }
+
+    private static void checkSource(
+            List<ToolDiagnostic> diagnostics,
+            int index,
+            Step step,
+            ToolIOSpec spec,
+            ToolFormat sourceFormat) {
+        if (sourceFormat == null || spec.acceptsFormat(sourceFormat)) {
+            return;
+        }
+        diagnostics.add(
+                ToolDiagnostic.error(
+                        index,
+                        ToolDiagnostic.SOURCE_MISMATCH,
+                        "Step "
+                                + step.operation()
+                                + " accepts "
+                                + describe(spec)
+                                + " but the pipeline's input is "
+                                + sourceFormat
+                                + "."));
+    }
+
+    private static void checkTransition(
+            List<ToolDiagnostic> diagnostics,
+            int index,
+            Step step,
+            ToolIOSpec spec,
+            ToolIOSpec.Output previous) {
+
+        if (previous.format() == ToolFormat.NONE) {
+            diagnostics.add(
+                    ToolDiagnostic.error(
+                            index,
+                            ToolDiagnostic.FORMAT_MISMATCH,
+                            "The previous step returns a report rather than a file, so "
+                                    + step.operation()
+                                    + " has nothing to run on."));
+            return;
+        }
+
+        if (!spec.acceptsFormat(previous.format())) {
+            String message =
+                    "Step "
+                            + step.operation()
+                            + " accepts "
+                            + describe(spec)
+                            + " but the previous step produces "
+                            + previous.format()
+                            + ".";
+            diagnostics.add(
+                    previous.certain()
+                            ? ToolDiagnostic.error(index, ToolDiagnostic.FORMAT_MISMATCH, message)
+                            // Unresolved output: may yet be fine once the step is configured.
+                            : ToolDiagnostic.warn(index, ToolDiagnostic.OUTPUT_UNCERTAIN, message));
+            return;
+        }
+
+        if (!previous.certain()) {
+            diagnostics.add(
+                    ToolDiagnostic.warn(
+                            index,
+                            ToolDiagnostic.OUTPUT_UNCERTAIN,
+                            "The previous step's output depends on how it is configured, so this"
+                                    + " step may not be able to run."));
+            return;
+        }
+
+        if (previous.arity().isMultiOutput()) {
+            diagnostics.add(
+                    spec.arity().isMultiInput()
+                            ? ToolDiagnostic.info(
+                                    index,
+                                    ToolDiagnostic.FAN_IN,
+                                    "This step combines every file the previous step produced.")
+                            : ToolDiagnostic.info(
+                                    index,
+                                    ToolDiagnostic.FAN_OUT,
+                                    "This step runs once for each file the previous step"
+                                            + " produced."));
+        }
+    }
+
+    private static String describe(ToolIOSpec spec) {
+        return spec.accepts().stream()
+                .map(Enum::name)
+                .sorted()
+                .reduce((a, b) -> a + " or " + b)
+                .orElse("nothing");
+    }
+}
@@ -0,0 +1,92 @@
+package stirling.software.common.service;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+import java.util.Optional;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * The value a request parameter takes when the caller omits it, read from the request model so a
+ * {@code @ToolIOCase} can be resolved even for a step that never sends the parameter it branches
+ * on. The default is read from the field so it cannot drift.
+ */
+@Slf4j
+public final class ToolIOParameterDefaults {
+
+    // Swagger's sentinel for an unset @Schema string member; not a real default value.
+    private static final String SCHEMA_UNSET = "##default";
+
+    private ToolIOParameterDefaults() {}
+
+    /**
+     * The default {@code param} resolves to when absent, or empty when the parameter is required
+     * with no declared default - in which case an unset value leaves the output genuinely unknown
+     * rather than defaulted, and the chain reports it as uncertain.
+     *
+     * <p>Precedence: an explicit {@code @Schema(defaultValue)}, then the field's own value (a
+     * primitive's language default, or an initializer), then the empty string for an optional field
+     * left null, and finally empty for a required field with none of the above.
+     */
+    public static Optional<String> resolve(Method handler, String param) {
+        for (Parameter parameter : handler.getParameters()) {
+            Field field = findField(parameter.getType(), param);
+            if (field != null) {
+                return fromField(parameter.getType(), field);
+            }
+        }
+        return Optional.empty();
+    }
+
+    private static Optional<String> fromField(Class<?> owner, Field field) {
+        Schema schema = field.getAnnotation(Schema.class);
+        if (schema != null
+                && !schema.defaultValue().isEmpty()
+                && !SCHEMA_UNSET.equals(schema.defaultValue())) {
+            return Optional.of(schema.defaultValue());
+        }
+        Object value = readField(owner, field);
+        if (value != null) {
+            return Optional.of(String.valueOf(value));
+        }
+        return isRequired(field, schema) ? Optional.empty() : Optional.of("");
+    }
+
+    private static Object readField(Class<?> owner, Field field) {
+        try {
+            Object instance = owner.getDeclaredConstructor().newInstance();
+            field.setAccessible(true);
+            return field.get(instance);
+        } catch (ReflectiveOperationException | RuntimeException e) {
+            // A request model we cannot instantiate leaves the default unknown, which the check
+            // treats conservatively as uncertain. Never break startup over it.
+            log.warn("Could not read default of {}.{}", owner.getSimpleName(), field.getName(), e);
+            return null;
+        }
+    }
+
+    private static boolean isRequired(Field field, Schema schema) {
+        if (schema != null && schema.requiredMode() == Schema.RequiredMode.REQUIRED) {
+            return true;
+        }
+        return field.isAnnotationPresent(NotNull.class)
+                || field.isAnnotationPresent(NotBlank.class);
+    }
+
+    private static Field findField(Class<?> type, String name) {
+        for (Class<?> c = type; c != null && c != Object.class; c = c.getSuperclass()) {
+            try {
+                return c.getDeclaredField(name);
+            } catch (NoSuchFieldException ignored) {
+                // Try the superclass; request models extend a shared file-input base.
+            }
+        }
+        return null;
+    }
+}
@@ -0,0 +1,130 @@
+package stirling.software.common.service;
+
+import java.lang.reflect.Method;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.TreeMap;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.event.ContextRefreshedEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Service;
+import org.springframework.web.method.HandlerMethod;
+import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
+
+import lombok.extern.slf4j.Slf4j;
+
+import stirling.software.common.model.tool.ToolIO;
+import stirling.software.common.model.tool.ToolIOSource;
+import stirling.software.common.model.tool.ToolIOSpec;
+
+/**
+ * Reads every {@link ToolIO} declaration off its handler method at startup and serves it by
+ * endpoint path. Replaces parsing the same information out of the description prose, which meant
+ * fetching our own {@code /v1/api-docs} over HTTP first.
+ */
+@Slf4j
+@Service
+public class ToolIORegistry implements ToolMetadataService, ToolIOSource {
+
+    private final ApplicationContext applicationContext;
+
+    // Written on the startup thread, read on request threads. Spring's lifecycle establishes
+    // happens-before, so no volatile (same as AiEngineEndpointResolver).
+    private Map<String, ToolIOSpec> specsByPath = Map.of();
+
+    // Keep this the only constructor: with two, Spring falls back to a no-arg one that isn't here.
+    public ToolIORegistry(ApplicationContext applicationContext) {
+        this.applicationContext = applicationContext;
+    }
+
+    /** A registry over known declarations rather than ones discovered from the context. */
+    static ToolIORegistry forSpecs(Map<String, ToolIOSpec> specs) {
+        ToolIORegistry registry = new ToolIORegistry(null);
+        registry.specsByPath = Map.copyOf(specs);
+        return registry;
+    }
+
+    @EventListener(ContextRefreshedEvent.class)
+    public void discoverToolIO() {
+        Map<String, ToolIOSpec> discovered = new TreeMap<>();
+        for (RequestMappingHandlerMapping mapping :
+                applicationContext.getBeansOfType(RequestMappingHandlerMapping.class).values()) {
+            mapping.getHandlerMethods()
+                    .forEach((info, handler) -> register(discovered, info, handler));
+        }
+        specsByPath = Map.copyOf(discovered);
+        log.debug("Discovered {} endpoints declaring @ToolIO", specsByPath.size());
+    }
+
+    private static void register(
+            Map<String, ToolIOSpec> target, RequestMappingInfo info, HandlerMethod handler) {
+        ToolIO annotation = handler.getMethodAnnotation(ToolIO.class);
+        if (annotation == null) {
+            return;
+        }
+        Method method = handler.getMethod();
+        ToolIOSpec spec =
+                ToolIOSpec.from(
+                        annotation, param -> ToolIOParameterDefaults.resolve(method, param));
+        for (String pattern : extractPatterns(info)) {
+            target.put(pattern, spec);
+        }
+    }
+
+    @Override
+    public Optional<ToolIOSpec> find(String operationPath) {
+        return Optional.ofNullable(specsByPath.get(operationPath));
+    }
+
+    @Override
+    public boolean isMultiInput(String operationPath) {
+        return find(operationPath).map(spec -> spec.arity().isMultiInput()).orElse(false);
+    }
+
+    @Override
+    public List<String> getExtensionTypes(boolean output, String operationPath) {
+        Optional<ToolIOSpec> spec = find(operationPath);
+        if (spec.isEmpty()) {
+            return null;
+        }
+        List<String> extensions =
+                output
+                        ? spec.get().resolveOutput().format().getExtensions()
+                        : spec.get().acceptedExtensions();
+        // Callers express "no restriction" as null.
+        return extensions.isEmpty() ? null : extensions;
+    }
+
+    @Override
+    public boolean shouldUnpackZipResponse(String operationPath) {
+        // Multi-output zips purely as transport. A single-output ZIP is the deliverable
+        // (extract-attachments) and stays packed.
+        return find(operationPath)
+                .map(spec -> spec.resolveOutput().arity().isMultiOutput())
+                .orElse(false);
+    }
+
+    private static Set<String> extractPatterns(RequestMappingInfo info) {
+        try {
+            Method getDirectPaths = info.getClass().getMethod("getDirectPaths");
+            Object result = getDirectPaths.invoke(info);
+            if (result instanceof Set<?> set) {
+                Set<String> patterns = new HashSet<>();
+                for (Object value : set) {
+                    if (value instanceof String s) {
+                        patterns.add(s);
+                    }
+                }
+                return patterns;
+            }
+        } catch (Exception e) {
+            log.trace("getDirectPaths unavailable on RequestMappingInfo", e);
+        }
+        return Set.of();
+    }
+}
@@ -17,12 +17,12 @@ public interface ToolMetadataService {
    List<String> getExtensionTypes(boolean output, String operationPath);

    /**
-     * Returns true when the endpoint's ZIP response is a transport for multiple typed results and
-     * should be unpacked: multi-output endpoints (Type:SIMO / Type:MIMO) and wrapper declarations
-     * such as {@code Output:ZIP-PDF} or {@code Output:IMAGE/ZIP}.
+     * Returns true when the endpoint's ZIP response is a transport for several results and should
+     * be unpacked, which is exactly the multi-output endpoints (a {@code SIMO} or {@code MIMO}
+     * arity).
     *
-     * <p>Returns false for a bare {@code Output:ZIP} (e.g. {@code get-attachments}), where the
-     * archive itself is the deliverable and should be kept packed.
+     * <p>Returns false for an endpoint whose declared output is an archive in its own right (for
+     * example {@code extract-attachments}), where unpacking would discard the deliverable.
     */
    boolean shouldUnpackZipResponse(String operationPath);
 }
@@ -1,4 +1,4 @@
-package org.apache.pdfbox.examples.util;
+package stirling.software.common.util;

 import java.io.File;
 import java.io.IOException;
@@ -194,7 +194,7 @@ public class EmlParser {
        }
        attachment.setFilename(filename);

-        String contentId = embedded ? stripCid(resourceName) : null;
+        String contentId = embedded ? stripCid(resource.getContentId()) : null;
        attachment.setContentId(contentId);

        String detectedContentType = EmlProcessingUtils.detectMimeType(filename, contentType);
@@ -941,7 +941,7 @@ public class GeneralUtils {
            }

            // If no MAC address found, use hostname as fallback
-            if (sb.length() == 0) {
+            if (sb.isEmpty()) {
                String hostname = InetAddress.getLocalHost().getHostName();
                sb.append(hostname != null ? hostname : "unknown-host");
                log.warn("No MAC address found, using hostname for fingerprint generation");
@@ -1,17 +1,22 @@
 package stirling.software.common.util;

 import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;

+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+
 import lombok.extern.slf4j.Slf4j;

@Slf4j
 public final class RegexPatternUtils {

    private static final RegexPatternUtils INSTANCE = new RegexPatternUtils();
-    private final ConcurrentHashMap<PatternKey, Pattern> patternCache = new ConcurrentHashMap<>();
+    private static final long MAX_CACHED_PATTERNS = 512;
+    private final Cache<PatternKey, Pattern> patternCache =
+            CacheBuilder.newBuilder().maximumSize(MAX_CACHED_PATTERNS).build();

    private static final String WHITESPACE_REGEX = "\\s++";
    private static final String EXTENSION_REGEX = "\\.(?:[^.]*+)?$";
@@ -51,7 +56,7 @@ public final class RegexPatternUtils {
            throw new IllegalArgumentException("Regex pattern cannot be null");
        }

-        return patternCache.computeIfAbsent(new PatternKey(regex, 0), this::compilePattern);
+        return getOrCompile(new PatternKey(regex, 0));
    }

    /**
@@ -77,7 +82,7 @@ public final class RegexPatternUtils {
            throw new IllegalArgumentException("Regex pattern cannot be null");
        }

-        return patternCache.computeIfAbsent(new PatternKey(regex, flags), this::compilePattern);
+        return getOrCompile(new PatternKey(regex, flags));
    }

    /**
@@ -98,7 +103,7 @@ public final class RegexPatternUtils {
     * @return true if pattern is cached, false otherwise
     */
    public boolean isCached(String regex, int flags) {
-        return regex != null && patternCache.containsKey(new PatternKey(regex, flags));
+        return regex != null && patternCache.getIfPresent(new PatternKey(regex, flags)) != null;
    }

    /**
@@ -107,7 +112,7 @@ public final class RegexPatternUtils {
     * @return number of patterns currently cached
     */
    public int getCacheSize() {
-        return patternCache.size();
+        return (int) patternCache.size();
    }

    /**
@@ -115,7 +120,7 @@ public final class RegexPatternUtils {
     * useful for testing or memory cleanup in long-running applications.
     */
    public void clearCache() {
-        patternCache.clear();
+        patternCache.invalidateAll();
        log.debug("Regex pattern cache cleared");
    }

@@ -141,13 +146,32 @@ public final class RegexPatternUtils {
            return false;
        }
        PatternKey key = new PatternKey(regex, flags);
-        boolean removed = patternCache.remove(key) != null;
+        boolean removed = patternCache.getIfPresent(key) != null;
+        patternCache.invalidate(key);
        if (removed) {
            log.debug("Removed regex pattern from cache: {} (flags: {})", regex, flags);
        }
        return removed;
    }

+    private Pattern getOrCompile(PatternKey key) {
+        try {
+            return patternCache.get(key, () -> compilePattern(key));
+        } catch (UncheckedExecutionException e) {
+            Throwable cause = e.getCause();
+            if (cause instanceof PatternSyntaxException patternSyntaxException) {
+                throw patternSyntaxException;
+            }
+            throw e;
+        } catch (java.util.concurrent.ExecutionException e) {
+            Throwable cause = e.getCause();
+            if (cause instanceof PatternSyntaxException patternSyntaxException) {
+                throw patternSyntaxException;
+            }
+            throw new IllegalStateException("Failed to compile regex pattern", cause);
+        }
+    }
+
    /**
     * Internal method to compile a pattern and handle errors consistently.
     *
@@ -537,10 +561,6 @@ public final class RegexPatternUtils {
        getPattern("[/\\\\?%*:|\"<>]"); // Unsafe filename characters
        getPattern("[^a-zA-Z0-9 ]"); // Input sanitization
        getPattern("[^a-zA-Z0-9]"); // Filename sanitization
-        // API doc patterns
-        getPattern("Output:\\s*(\\w+)");
-        getPattern("Input:\\s*(\\w+)");
-        getPattern("Type:\\s*(\\w+)");
        log.debug("Pre-compiled {} common regex patterns", patternCache.size());
    }

@@ -550,23 +570,6 @@ public final class RegexPatternUtils {
                "^(?=.{1,320}$)(?=.{1,64}@)[A-Za-z0-9](?:[A-Za-z0-9_.+-]*[A-Za-z0-9])?@[^-][A-Za-z0-9-]+(?:\\.[A-Za-z0-9-]+)*(?:\\.[A-Za-z]{2,})$");
    }

-    /* Pattern for matching Output:<TYPE> in API descriptions */
-    public Pattern getApiDocOutputTypePattern() {
-        return getPattern("Output:\\s*(\\w+)");
-    }
-
-    /* Pattern for matching Input:<TYPE> in API descriptions */
-    public Pattern getApiDocInputTypePattern() {
-        return getPattern("Input:\\s*(\\w+)");
-    }
-
-    /**
-     * Pattern for matching Type:<CODE> in API descriptions
-     */
-    public Pattern getApiDocTypePattern() {
-        return getPattern("Type:\\s*(\\w+)");
-    }
-
    /* Pattern for validating file extensions (2-4 alphanumeric, case-insensitive) */
    public Pattern getFileExtensionValidationPattern() {
        return getPattern("^[a-zA-Z0-9]{2,4}$", Pattern.CASE_INSENSITIVE);
@@ -154,7 +154,7 @@ class PdfMarkdownConverterTest {
                    || isTableSeparatorRow(line)) {
                continue;
            }
-            if (sb.length() > 0) {
+            if (!sb.isEmpty()) {
                sb.append('\n');
            }
            sb.append(line);
@@ -0,0 +1,164 @@
+package stirling.software.common.service;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.api.DynamicTest;
+import org.junit.jupiter.api.TestFactory;
+
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolDiagnostic;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIOSource;
+import stirling.software.common.model.tool.ToolIOSpec;
+
+import tools.jackson.databind.JsonNode;
+import tools.jackson.databind.json.JsonMapper;
+
+/** The shared cases in {@code testing/tool-io-cases.json}, which all three implementations run. */
+class ToolChainValidatorConformanceTest {
+
+    private static final JsonMapper MAPPER = JsonMapper.builder().build();
+
+    @TestFactory
+    Stream<DynamicTest> sharedCases() throws IOException {
+        JsonNode root = MAPPER.readTree(Files.readString(casesFile()));
+        Map<String, ToolIOSpec> specs = readSpecs(root.get("specs"));
+
+        List<DynamicTest> tests = new ArrayList<>();
+        for (JsonNode testCase : root.get("cases")) {
+            tests.add(
+                    DynamicTest.dynamicTest(
+                            testCase.get("name").asString(), () -> runCase(testCase, specs)));
+        }
+        return tests.stream();
+    }
+
+    private static void runCase(JsonNode testCase, Map<String, ToolIOSpec> specs) {
+        Map<String, ToolIOSpec> registry = new HashMap<>();
+        List<ToolChainValidator.Step> steps = new ArrayList<>();
+
+        int index = 0;
+        for (JsonNode stepNode : testCase.get("steps")) {
+            // Each step gets its own path so the same spec can appear twice in a chain.
+            String operation = "/op/" + index++;
+            JsonNode specName = stepNode.get("spec");
+            if (specName != null && !specName.isNull()) {
+                registry.put(operation, specs.get(specName.asString()));
+            }
+            steps.add(new ToolChainValidator.Step(operation, readParameters(stepNode)));
+        }
+
+        JsonNode sourceNode = testCase.get("sourceFormat");
+        ToolFormat sourceFormat =
+                sourceNode == null || sourceNode.isNull()
+                        ? null
+                        : ToolFormat.valueOf(sourceNode.asString());
+
+        List<ToolDiagnostic> actual =
+                new ToolChainValidator(ToolIOSource.of(registry)).validate(steps, sourceFormat);
+
+        assertEquals(summarise(testCase.get("expected")), summarise(actual), describe(actual));
+    }
+
+    private static Map<String, Object> readParameters(JsonNode stepNode) {
+        JsonNode parameters = stepNode.get("parameters");
+        if (parameters == null || parameters.isNull()) {
+            return null;
+        }
+        Map<String, Object> values = new HashMap<>();
+        parameters.propertyStream().forEach(e -> values.put(e.getKey(), e.getValue().asString()));
+        return values;
+    }
+
+    private static Map<String, ToolIOSpec> readSpecs(JsonNode node) {
+        Map<String, ToolIOSpec> specs = new HashMap<>();
+        node.propertyStream()
+                .forEach(entry -> specs.put(entry.getKey(), readSpec(entry.getValue())));
+        return specs;
+    }
+
+    private static ToolIOSpec readSpec(JsonNode node) {
+        Set<ToolFormat> accepts = new LinkedHashSet<>();
+        for (JsonNode format : node.get("accepts")) {
+            accepts.add(ToolFormat.valueOf(format.asString()));
+        }
+        List<ToolIOSpec.Case> cases = new ArrayList<>();
+        for (JsonNode rule : node.get("cases")) {
+            List<ToolIOSpec.When> when = new ArrayList<>();
+            for (JsonNode condition : rule.get("when")) {
+                List<String> matches = new ArrayList<>();
+                for (JsonNode match : condition.get("matches")) {
+                    matches.add(match.asString());
+                }
+                JsonNode paramDefault = condition.get("default");
+                when.add(
+                        new ToolIOSpec.When(
+                                condition.get("param").asString(),
+                                matches,
+                                paramDefault == null ? null : paramDefault.asString()));
+            }
+            cases.add(
+                    new ToolIOSpec.Case(
+                            when,
+                            ToolFormat.valueOf(rule.get("produces").asString()),
+                            ToolArity.valueOf(rule.get("arity").asString())));
+        }
+        return new ToolIOSpec(
+                accepts,
+                ToolFormat.valueOf(node.get("produces").asString()),
+                ToolArity.valueOf(node.get("arity").asString()),
+                cases);
+    }
+
+    /** Messages are free text, so compare only the contractual parts. */
+    private static List<String> summarise(List<ToolDiagnostic> diagnostics) {
+        return diagnostics.stream()
+                .map(d -> d.stepIndex() + ":" + d.severity() + ":" + d.code())
+                .toList();
+    }
+
+    private static List<String> summarise(JsonNode expected) {
+        List<String> summary = new ArrayList<>();
+        for (JsonNode node : expected) {
+            summary.add(
+                    node.get("stepIndex").asInt()
+                            + ":"
+                            + node.get("severity").asString()
+                            + ":"
+                            + node.get("code").asString());
+        }
+        return summary;
+    }
+
+    private static String describe(List<ToolDiagnostic> actual) {
+        return actual.stream()
+                .map(ToolDiagnostic::message)
+                .reduce((a, b) -> a + " | " + b)
+                .orElse("no diagnostics");
+    }
+
+    /** Shared with the frontend and engine, so it lives at the repo root. */
+    private static Path casesFile() {
+        Path current = Path.of("").toAbsolutePath();
+        while (current != null) {
+            Path candidate = current.resolve("testing/tool-io-cases.json");
+            if (Files.exists(candidate)) {
+                return candidate;
+            }
+            current = current.getParent();
+        }
+        throw new IllegalStateException(
+                "testing/tool-io-cases.json not found above the working directory");
+    }
+}
@@ -0,0 +1,119 @@
+package stirling.software.common.service;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.List;
+import java.util.Map;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.context.support.StaticWebApplicationContext;
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
+
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
+import stirling.software.common.model.tool.ToolIOCase;
+import stirling.software.common.model.tool.ToolIOSpec;
+import stirling.software.common.model.tool.ToolIOWhen;
+
+/**
+ * The registry reads real {@code @ToolIO} annotations off real handler mappings. Everything else
+ * checks the logic against a hand-built map, which would still pass if discovery silently found
+ * nothing.
+ */
+class ToolIODiscoveryTest {
+
+    @RestController
+    @RequestMapping("/api/v1/fixture")
+    static class FixtureController {
+
+        @PostMapping("/rotate")
+        @ToolIO(produces = ToolFormat.PDF)
+        public String rotate() {
+            return "";
+        }
+
+        @PostMapping("/split")
+        @ToolIO(produces = ToolFormat.PDF, arity = ToolArity.SIMO)
+        public String split() {
+            return "";
+        }
+
+        @PostMapping("/add-password")
+        @ToolIO(
+                produces = ToolFormat.PDF_ENCRYPTED,
+                cases =
+                        @ToolIOCase(
+                                when = {
+                                    @ToolIOWhen(param = "password", matches = ""),
+                                    @ToolIOWhen(param = "ownerPassword", matches = "")
+                                },
+                                produces = ToolFormat.PDF,
+                                arity = ToolArity.SISO))
+        public String addPassword() {
+            return "";
+        }
+
+        @PostMapping("/undeclared")
+        public String undeclared() {
+            return "";
+        }
+    }
+
+    private static ToolIORegistry registry;
+
+    @BeforeAll
+    static void discover() {
+        StaticWebApplicationContext context = new StaticWebApplicationContext();
+        context.registerSingleton("fixtureController", FixtureController.class);
+        RequestMappingHandlerMapping mapping = new RequestMappingHandlerMapping();
+        mapping.setApplicationContext(context);
+        mapping.afterPropertiesSet();
+        context.getBeanFactory().registerSingleton("requestMappingHandlerMapping", mapping);
+
+        registry = new ToolIORegistry(context);
+        registry.discoverToolIO();
+    }
+
+    @Test
+    void readsDeclarationsOffHandlerMethods() {
+        ToolIOSpec rotate = registry.find("/api/v1/fixture/rotate").orElseThrow();
+        assertEquals(ToolFormat.PDF, rotate.produces());
+        assertEquals(ToolArity.SISO, rotate.arity());
+        assertTrue(rotate.acceptsFormat(ToolFormat.PDF));
+        assertFalse(rotate.acceptsFormat(ToolFormat.PDF_ENCRYPTED));
+    }
+
+    @Test
+    void skipsMethodsWithNoDeclaration() {
+        assertTrue(registry.find("/api/v1/fixture/undeclared").isEmpty());
+    }
+
+    @Test
+    void carriesArityThroughToTheUnpackDecision() {
+        assertTrue(registry.shouldUnpackZipResponse("/api/v1/fixture/split"));
+        assertFalse(registry.shouldUnpackZipResponse("/api/v1/fixture/rotate"));
+    }
+
+    @Test
+    void carriesCasesThroughToOutputResolution() {
+        ToolIOSpec spec = registry.find("/api/v1/fixture/add-password").orElseThrow();
+        assertEquals(
+                ToolFormat.PDF_ENCRYPTED,
+                spec.resolveOutput(Map.of("password", "x", "ownerPassword", "")).format());
+        assertEquals(
+                ToolFormat.PDF,
+                spec.resolveOutput(Map.of("password", "", "ownerPassword", "")).format());
+    }
+
+    @Test
+    void exposesInputExtensionsForRunTimeFileChecks() {
+        assertEquals(List.of("pdf"), registry.getExtensionTypes(false, "/api/v1/fixture/rotate"));
+    }
+}
@@ -0,0 +1,87 @@
+package stirling.software.common.service;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.junit.jupiter.api.Test;
+
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIOSpec;
+
+/** The {@link ToolMetadataService} behaviour the pipeline executors depend on. */
+class ToolIORegistryTest {
+
+    private static final String SPLIT = "/api/v1/general/split-pages";
+    private static final String MERGE = "/api/v1/general/merge-pdfs";
+    private static final String ROTATE = "/api/v1/general/rotate-pdf";
+    private static final String ATTACHMENTS = "/api/v1/security/get-attachments";
+    private static final String EXTRACT_IMAGES = "/api/v1/misc/extract-images";
+    private static final String CONVERT_ANY = "/api/v1/convert/file/pdf";
+    private static final String UNKNOWN = "/api/v1/general/does-not-exist";
+
+    private static ToolIOSpec spec(ToolFormat accepts, ToolFormat produces, ToolArity arity) {
+        return new ToolIOSpec(Set.of(accepts), produces, arity, List.of());
+    }
+
+    private final ToolIORegistry registry =
+            ToolIORegistry.forSpecs(
+                    Map.of(
+                            SPLIT, spec(ToolFormat.PDF, ToolFormat.PDF, ToolArity.SIMO),
+                            MERGE, spec(ToolFormat.PDF, ToolFormat.PDF, ToolArity.MISO),
+                            ROTATE, spec(ToolFormat.PDF, ToolFormat.PDF, ToolArity.SISO),
+                            ATTACHMENTS, spec(ToolFormat.PDF, ToolFormat.ZIP, ToolArity.SISO),
+                            EXTRACT_IMAGES, spec(ToolFormat.PDF, ToolFormat.IMAGE, ToolArity.SIMO),
+                            CONVERT_ANY, spec(ToolFormat.ANY, ToolFormat.PDF, ToolArity.SISO)));
+
+    @Test
+    void multiInputFollowsArity() {
+        assertTrue(registry.isMultiInput(MERGE));
+        assertFalse(registry.isMultiInput(SPLIT));
+        assertFalse(registry.isMultiInput(ROTATE));
+        assertFalse(registry.isMultiInput(UNKNOWN));
+    }
+
+    @Test
+    void inputExtensionsComeFromAcceptedFormats() {
+        assertEquals(List.of("pdf"), registry.getExtensionTypes(false, ROTATE));
+    }
+
+    @Test
+    void outputExtensionsComeFromTheProducedFormat() {
+        assertEquals(List.of("pdf"), registry.getExtensionTypes(true, ROTATE));
+        assertTrue(registry.getExtensionTypes(true, EXTRACT_IMAGES).contains("png"));
+    }
+
+    @Test
+    void noRestrictionIsReportedAsNull() {
+        // Callers treat null as "any type accepted".
+        assertNull(registry.getExtensionTypes(false, CONVERT_ANY));
+        assertNull(registry.getExtensionTypes(false, UNKNOWN));
+    }
+
+    @Test
+    void multiOutputResponsesAreUnpacked() {
+        assertTrue(registry.shouldUnpackZipResponse(SPLIT));
+        assertTrue(registry.shouldUnpackZipResponse(EXTRACT_IMAGES));
+    }
+
+    @Test
+    void anArchiveDeliverableStaysPacked() {
+        // The archive is the deliverable; unpacking would lose it.
+        assertFalse(registry.shouldUnpackZipResponse(ATTACHMENTS));
+    }
+
+    @Test
+    void singleOutputResponsesAreNotUnpacked() {
+        assertFalse(registry.shouldUnpackZipResponse(ROTATE));
+        assertFalse(registry.shouldUnpackZipResponse(MERGE));
+        assertFalse(registry.shouldUnpackZipResponse(UNKNOWN));
+    }
+}
@@ -325,11 +325,8 @@ class RegexPatternUtilsMoreTest {
        }

        @Test
-        void pageModeAndApiDocPatterns() {
+        void pageModePattern() {
            assertTrue(utils.getPageModePattern().matcher("a/b").find());
-            assertTrue(utils.getApiDocOutputTypePattern().matcher("Output: PDF").find());
-            assertTrue(utils.getApiDocInputTypePattern().matcher("Input: PDF").find());
-            assertTrue(utils.getApiDocTypePattern().matcher("Type: WEB").find());
        }

        @Test
@@ -57,11 +57,11 @@ dependencies {
    // veraPDF still uses javax.xml.bind, not the new jakarta namespace
    implementation 'javax.xml.bind:jaxb-api:2.3.1'
    implementation 'com.sun.xml.bind:jaxb-impl:2.3.9'
-    implementation 'com.sun.xml.bind:jaxb-core:4.0.7'
+    implementation 'com.sun.xml.bind:jaxb-core:4.0.9'

    // CVE-2022-25647: Explicit gson to prevent unsafe deserialization (tabula would pull 2.8.7)
    implementation "com.google.code.gson:gson:${gsonVersion}"
-    implementation 'org.apache.pdfbox:jbig2-imageio:3.0.4'
+    implementation 'org.apache.pdfbox:jbig2-imageio:3.0.5'
    implementation 'com.opencsv:opencsv:5.12.0' // https://mvnrepository.com/artifact/com.opencsv/opencsv
    implementation 'org.apache.poi:poi-ooxml:5.5.1'

@@ -321,7 +321,7 @@ public class ExternalAppDepConfig {
                new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8))) {
            String line;
            while ((line = br.readLine()) != null) {
-                if (sb.length() > 0) sb.append('\n');
+                if (!sb.isEmpty()) sb.append('\n');
                sb.append(line);
            }
        }
@@ -40,7 +40,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get PDF page count",
-            description = "Returns total number of pages in PDF. Input:PDF Output:JSON Type:SISO")
+            description = "Returns total number of pages in PDF.")
    public ResponseEntity<?> getPageCount(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            return ResponseEntity.ok(Map.of("pageCount", document.getNumberOfPages()));
@@ -54,7 +54,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get basic PDF information",
-            description = "Returns page count, version, file size. Input:PDF Output:JSON Type:SISO")
+            description = "Returns page count, version, file size.")
    public ResponseEntity<?> getBasicInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> info = new HashMap<>();
@@ -72,7 +72,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get PDF document properties",
-            description = "Returns title, author, subject, etc. Input:PDF Output:JSON Type:SISO")
+            description = "Returns title, author, subject, etc.")
    public ResponseEntity<?> getDocumentProperties(@ModelAttribute PDFFile file)
            throws IOException {
        // Load the document in read-only mode to prevent modifications and ensure the integrity of
@@ -105,7 +105,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get page dimensions for all pages",
-            description = "Returns width and height of each page. Input:PDF Output:JSON Type:SISO")
+            description = "Returns width and height of each page.")
    public ResponseEntity<?> getPageDimensions(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            List<Map<String, Float>> dimensions = new ArrayList<>();
@@ -128,8 +128,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get form field information",
-            description =
-                    "Returns count and details of form fields. Input:PDF Output:JSON Type:SISO")
+            description = "Returns count and details of form fields.")
    public ResponseEntity<?> getFormFields(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> formInfo = new HashMap<>();
@@ -155,7 +154,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get annotation information",
-            description = "Returns count and types of annotations. Input:PDF Output:JSON Type:SISO")
+            description = "Returns count and types of annotations.")
    public ResponseEntity<?> getAnnotationInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> annotInfo = new HashMap<>();
@@ -183,8 +182,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get font information",
-            description =
-                    "Returns list of fonts used in the document. Input:PDF Output:JSON Type:SISO")
+            description = "Returns list of fonts used in the document.")
    public ResponseEntity<?> getFontInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> fontInfo = new HashMap<>();
@@ -212,8 +210,7 @@ public class AnalysisController {
    @JsonDataResponse
    @Operation(
            summary = "Get security information",
-            description =
-                    "Returns encryption and permission details. Input:PDF Output:JSON Type:SISO")
+            description = "Returns encryption and permission details.")
    public ResponseEntity<?> getSecurityInfo(@ModelAttribute PDFFile file) throws IOException {
        try (PDDocument document = pdfDocumentFactory.load(file.getFileInput())) {
            Map<String, Object> securityInfo = new HashMap<>();
@@ -29,6 +29,8 @@ import lombok.RequiredArgsConstructor;
 import stirling.software.SPDF.model.api.general.BookletImpositionRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.GeneralUtils;
 import stirling.software.common.util.TempFileManager;
@@ -47,12 +49,13 @@ public class BookletImpositionController {
            value = "/booklet-imposition",
            consumes = MediaType.MULTIPART_FORM_DATA_VALUE,
            resourceWeight = ResourceWeight.MEDIUM_WEIGHT)
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Create a booklet with proper page imposition",
            description =
-                    "This operation combines page reordering for booklet printing with multi-page layout. "
-                            + "It rearranges pages in the correct order for booklet printing and places multiple pages "
-                            + "on each sheet for proper folding and binding. Input:PDF Output:PDF Type:SISO")
+                    "This operation combines page reordering for booklet printing with multi-page"
+                            + " layout. It rearranges pages in the correct order for booklet printing and"
+                            + " places multiple pages on each sheet for proper folding and binding.")
    public ResponseEntity<Resource> createBookletImposition(
            @ModelAttribute BookletImpositionRequest request) throws IOException {

@@ -27,6 +27,8 @@ import stirling.software.SPDF.model.api.general.CropPdfForm;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
@@ -131,11 +133,12 @@ public class CropController {
            value = "/crop",
            consumes = MediaType.MULTIPART_FORM_DATA_VALUE,
            resourceWeight = ResourceWeight.SMALL_WEIGHT)
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Crops a PDF document",
            description =
                    "This operation takes an input PDF file and crops it according to the given"
-                            + " coordinates. Input:PDF Output:PDF Type:SISO")
+                            + " coordinates.")
    public ResponseEntity<Resource> cropPdf(@ModelAttribute CropPdfForm request)
            throws IOException {
        if (request.isAutoCrop()) {
@@ -26,6 +26,8 @@ import stirling.software.SPDF.model.api.EditTableOfContentsRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.GeneralUtils;
 import stirling.software.common.util.TempFileManager;
@@ -47,6 +49,7 @@ public class EditTableOfContentsController {
            value = "/extract-bookmarks",
            consumes = MediaType.MULTIPART_FORM_DATA_VALUE,
            resourceWeight = ResourceWeight.SMALL_WEIGHT)
+    @ToolIO(produces = ToolFormat.JSON)
    @Operation(
            summary = "Extract PDF Bookmarks",
            description = "Extracts bookmarks/table of contents from a PDF document as JSON.")
@@ -151,6 +154,7 @@ public class EditTableOfContentsController {
            value = "/edit-table-of-contents",
            consumes = MediaType.MULTIPART_FORM_DATA_VALUE,
            resourceWeight = ResourceWeight.SMALL_WEIGHT)
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Edit Table of Contents",
            description = "Add or edit bookmarks/table of contents in a PDF document.")
@@ -34,6 +34,8 @@ import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
 import stirling.software.common.model.api.general.EditTextOperation;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
 import stirling.software.common.util.TempFile;
@@ -83,19 +85,18 @@ public class EditTextController {
            value = "/edit-text",
            resourceWeight = ResourceWeight.LARGE_WEIGHT)
    @StandardPdfResponse
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Edit text in a PDF via find and replace",
            description =
                    "Applies an ordered list of find/replace operations to the text in a PDF and"
-                            + " returns the edited PDF. Useful for find-and-replace, bulk renames"
-                            + " (e.g. updating a company name throughout a document), and copy"
-                            + " editing where the AI agent has identified specific replacements."
-                            + " Matching is performed against the joined text of each page, so"
-                            + " find strings can span multiple visual runs (titles split per word,"
-                            + " kerning-broken phrases). Cross-element matches are written as a"
-                            + " single replacement run anchored at the leftmost matched position;"
-                            + " centered or tracked text may shift left when its content changes."
-                            + " Input:PDF Output:PDF Type:SISO")
+                            + " returns the edited PDF. Useful for find-and-replace, bulk renames (e.g."
+                            + " updating a company name throughout a document), and copy editing where the AI"
+                            + " agent has identified specific replacements. Matching is performed against the"
+                            + " joined text of each page, so find strings can span multiple visual runs"
+                            + " (titles split per word, kerning-broken phrases). Cross-element matches are"
+                            + " written as a single replacement run anchored at the leftmost matched position;"
+                            + " centered or tracked text may shift left when its content changes.")
    public ResponseEntity<Resource> editText(@ModelAttribute EditTextRequest request)
            throws Exception {
        MultipartFile inputFile = request.getFileInput();
@@ -41,6 +41,9 @@ import stirling.software.SPDF.model.api.general.MergePdfsRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
@@ -265,12 +268,13 @@ public class MergeController {
            value = "/merge-pdfs",
            resourceWeight = ResourceWeight.MEDIUM_WEIGHT)
    @StandardPdfResponse
+    @ToolIO(produces = ToolFormat.PDF, arity = ToolArity.MISO)
    @Operation(
            summary = "Merge multiple PDF files into one",
            description =
                    "This endpoint merges multiple PDF files into a single PDF file. The merged"
                            + " file will contain all pages from the input files in the order they were"
-                            + " provided. Input:PDF Output:PDF Type:MISO")
+                            + " provided.")
    public ResponseEntity<Resource> mergePdfs(
            @ModelAttribute MergePdfsRequest request,
            @RequestParam(value = "fileOrder", required = false) String fileOrder)
@@ -25,6 +25,8 @@ import stirling.software.SPDF.model.api.general.MergeMultiplePagesRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralFormCopyUtils;
@@ -44,11 +46,12 @@ public class MultiPageLayoutController {
            value = "/multi-page-layout",
            consumes = MediaType.MULTIPART_FORM_DATA_VALUE,
            resourceWeight = ResourceWeight.MEDIUM_WEIGHT)
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Merge multiple pages of a PDF document into a single page",
            description =
                    "This operation takes an input PDF file and the number of pages to merge into a"
-                            + " single sheet in the output PDF file. Input:PDF Output:PDF Type:SISO")
+                            + " single sheet in the output PDF file.")
    public ResponseEntity<Resource> mergeMultiplePagesIntoOne(
            @ModelAttribute MergeMultiplePagesRequest request) throws IOException {

@@ -27,6 +27,9 @@ import stirling.software.SPDF.model.api.general.OverlayPdfsRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
@@ -46,17 +49,19 @@ public class PdfOverlayController {
            consumes = MediaType.MULTIPART_FORM_DATA_VALUE,
            resourceWeight = ResourceWeight.MEDIUM_WEIGHT)
    @StandardPdfResponse
+    @ToolIO(produces = ToolFormat.PDF, arity = ToolArity.MISO)
    @Operation(
            summary = "Overlay PDF files in various modes",
            description =
                    "Overlay PDF files onto a base PDF with different modes: Sequential,"
-                            + " Interleaved, or Fixed Repeat. Input:PDF Output:PDF Type:MIMO")
+                            + " Interleaved, or Fixed Repeat.")
    public ResponseEntity<Resource> overlayPdfs(@ModelAttribute OverlayPdfsRequest request)
            throws IOException {
        MultipartFile baseFile = request.getFileInput();
        int overlayPos = request.getOverlayPosition();

        MultipartFile[] overlayFiles = request.getOverlayFiles();
+        validateOverlayFiles(overlayFiles);
        File[] overlayPdfFiles = new File[overlayFiles.length];
        List<File> tempFiles = new ArrayList<>(); // List to keep track of temporary files

@@ -116,10 +121,29 @@ public class PdfOverlayController {
        }
    }

+    // Both fields are declared required, but @ModelAttribute binding leaves them null when the
+    // caller omits them, which would otherwise surface as a 500 instead of a 400.
+    private void validateOverlayFiles(MultipartFile[] overlayFiles) {
+        if (overlayFiles == null || overlayFiles.length == 0) {
+            throw ExceptionUtils.createIllegalArgumentException(
+                    "error.overlayFilesRequired", "At least one overlay file is required");
+        }
+        for (MultipartFile overlayFile : overlayFiles) {
+            if (overlayFile == null || overlayFile.isEmpty()) {
+                throw ExceptionUtils.createIllegalArgumentException(
+                        "error.overlayFileEmpty", "Overlay files must not be empty");
+            }
+        }
+    }
+
    private Map<Integer, String> prepareOverlayGuide(
            int basePageCount, File[] overlayFiles, String mode, int[] counts, List<File> tempFiles)
            throws IOException {
        Map<Integer, String> overlayGuide = new HashMap<>();
+        if (mode == null) {
+            throw ExceptionUtils.createIllegalArgumentException(
+                    "error.invalidFormat", "Invalid {0} format: {1}", "overlay mode", "null");
+        }
        switch (mode) {
            case "SequentialOverlay":
                sequentialOverlay(overlayGuide, overlayFiles, basePageCount, tempFiles);
@@ -29,6 +29,9 @@ import stirling.software.SPDF.model.api.general.PosterPdfRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolArity;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
@@ -49,13 +52,13 @@ public class PosterPdfController {
            consumes = "multipart/form-data",
            resourceWeight = ResourceWeight.MEDIUM_WEIGHT)
    @MultiFileResponse
+    @ToolIO(produces = ToolFormat.PDF, arity = ToolArity.SIMO)
    @Operation(
            summary = "Split large PDF pages into smaller printable chunks",
            description =
-                    "This endpoint splits large or oddly-sized PDF pages into smaller chunks "
-                            + "suitable for printing on standard paper sizes (e.g., A4, Letter). "
-                            + "Divides each page into a grid of smaller pages using Apache PDFBox. "
-                            + "Input: PDF Output: ZIP-PDF Type: SISO")
+                    "This endpoint splits large or oddly-sized PDF pages into smaller chunks"
+                            + " suitable for printing on standard paper sizes (e.g., A4, Letter). Divides each"
+                            + " page into a grid of smaller pages using Apache PDFBox.")
    public ResponseEntity<Resource> posterPdf(@ModelAttribute PosterPdfRequest request)
            throws Exception {

@@ -30,6 +30,8 @@ import stirling.software.SPDF.model.api.general.RearrangePagesRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.FormUtils;
@@ -50,12 +52,12 @@ public class RearrangePagesPDFController {
            value = "/remove-pages",
            resourceWeight = ResourceWeight.SMALL_WEIGHT)
    @StandardPdfResponse
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Remove pages from a PDF file",
            description =
                    "This endpoint removes specified pages from a given PDF file. Users can provide"
-                            + " a comma-separated list of page numbers or ranges to delete. Input:PDF"
-                            + " Output:PDF Type:SISO")
+                            + " a comma-separated list of page numbers or ranges to delete.")
    public ResponseEntity<Resource> deletePages(@ModelAttribute PDFWithPageNums request)
            throws IOException {

@@ -234,13 +236,13 @@ public class RearrangePagesPDFController {
            value = "/rearrange-pages",
            resourceWeight = ResourceWeight.SMALL_WEIGHT)
    @StandardPdfResponse
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Rearrange pages in a PDF file",
            description =
                    "This endpoint rearranges pages in a given PDF file based on the specified page"
-                            + " order or custom mode. Users can provide a page order as a"
-                            + " comma-separated list of page numbers or page ranges, or a custom mode."
-                            + " Input:PDF Output:PDF")
+                            + " order or custom mode. Users can provide a page order as a comma-separated list"
+                            + " of page numbers or page ranges, or a custom mode.")
    public ResponseEntity<Resource> rearrangePages(@ModelAttribute RearrangePagesRequest request)
            throws IOException {
        MultipartFile pdfFile = request.getFileInput();
@@ -20,6 +20,8 @@ import stirling.software.SPDF.model.api.general.RotatePDFRequest;
 import stirling.software.common.annotations.AutoJobPostMapping;
 import stirling.software.common.annotations.api.GeneralApi;
 import stirling.software.common.enumeration.ResourceWeight;
+import stirling.software.common.model.tool.ToolFormat;
+import stirling.software.common.model.tool.ToolIO;
 import stirling.software.common.service.CustomPDFDocumentFactory;
 import stirling.software.common.util.ExceptionUtils;
 import stirling.software.common.util.GeneralUtils;
@@ -38,11 +40,12 @@ public class RotationController {
            value = "/rotate-pdf",
            resourceWeight = ResourceWeight.SMALL_WEIGHT)
    @StandardPdfResponse
+    @ToolIO(produces = ToolFormat.PDF)
    @Operation(
            summary = "Rotate a PDF file",
            description =
                    "This endpoint rotates a given PDF file by a specified angle. The angle must be"
-                            + " a multiple of 90. Input:PDF Output:PDF Type:SISO")
+                            + " a multiple of 90.")
    public ResponseEntity<Resource> rotatePDF(@ModelAttribute RotatePDFRequest request)
            throws IOException {
        MultipartFile pdfFile = request.getFileInput();
--- a/Show More
+++ b/Show More