CI: add engine coverage & linting/style fixes

Add AI engine coverage reporting to CI (run tests with coverage, show in step summary, and upload artifact). Relax and align engine pre-commit package specifiers and update uv.lock. Increase ruff line-length and add per-file ignores; update Taskfile and pre-commit Taskfile to use engine ruff config. Add coverage entries to engine/.gitignore. Apply numerous non-functional Python style and formatting fixes across scripts and cucumber test steps (imports, f-strings, line breaks, noqa markers, single-line asserts) to satisfy linters—no behavioral changes intended.

.taskfiles/pre-commit.yml

@@ -7,10 +7,10 @@ vars:
   # File selections as git pathspecs: git does the include/exclude matching, so
   # there is no grep/xargs and it behaves identically on every platform.
   PY_FILES: >-
-    'scripts/*.py'
+    'scripts/**/*.py'
     '.github/scripts/*.py'
     'app/core/src/main/resources/static/python/*.py'
-    ':(exclude)*split_photos.py'
+    'testing/**/*.py'
   SPELL_FILES: >-
     '*.html'
     '*.css'
@@ -80,7 +80,7 @@ tasks:
     desc: "Install the pinned pre-commit Python tools"
     run: once
     cmds:
-      - uv sync --project engine --locked --group pre-commit
+      - uv sync --locked --project engine --group pre-commit
     sources:
       - engine/uv.lock
       - engine/pyproject.toml
@@ -101,12 +101,13 @@ tasks:
   ruff:
     deps: [install]
     cmds:
-      - uv run --project engine --locked --group pre-commit ruff check --isolated --line-length=120 {{if .FIX}}--fix {{end}}$(git ls-files {{.PY_FILES}})
+      # - uv run --project engine --locked --group pre-commit ruff check --isolated --line-length=127 {{if .FIX}}--fix {{end}}$(git ls-files {{.PY_FILES}})
+      - uv run --project engine --locked --group pre-commit ruff check --config engine/pyproject.toml {{if .FIX}}--fix {{end}}$(git ls-files {{.PY_FILES}})
 
   ruff-format:
     deps: [install]
     cmds:
-      - uv run --project engine --locked --group pre-commit ruff format --isolated --line-length=120 {{if .FIX}}{{else}}--check {{end}}$(git ls-files {{.PY_FILES}})
+      - uv run --project engine --locked --group pre-commit ruff format --config engine/pyproject.toml {{if .FIX}}{{else}}--check {{end}}$(git ls-files {{.PY_FILES}})
 
   codespell:
     deps: [install]