fix(desktop): escape $ in jlink readonly-clear so PowerShell receives it

.taskfiles/desktop.yml

@@ -194,7 +194,8 @@ tasks:
       # `desktop:build` run `jlink:clean` first to force a fresh build.
       - cmd: chmod -R u+w runtime/jre
         platforms: [linux, darwin]
-      - cmd: powershell -NoProfile -Command "Get-ChildItem -Recurse runtime/jre | ForEach-Object { $_.IsReadOnly = $false }"
+      # Escape the $ so Task's shell doesn't expand $_/$false to empty before PowerShell sees them.
+      - cmd: powershell -NoProfile -Command "Get-ChildItem -Recurse runtime/jre | ForEach-Object { \$_.IsReadOnly = \$false }"
         platforms: [windows]
     status:
       - test -f runtime/jre/release

frontend/editor/src/core/utils/toolIOCompat.test.ts

@@ -2,6 +2,7 @@
 
 import { readFileSync } from "node:fs";
 import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
 import { describe, expect, it } from "vitest";
 import {
   validateToolChain,
@@ -24,7 +25,7 @@ interface SharedCase {
 
 /** Shared with the backend and engine, so it lives at the repo root. */
 function casesFile(): string {
-  let current = dirname(new URL(import.meta.url).pathname);
+  let current = dirname(fileURLToPath(import.meta.url));
   for (let i = 0; i < 12; i++) {
     const candidate = resolve(current, "testing/tool-io-cases.json");
     try {

frontend/editor/src/core/utils/toolIOLabels.test.ts

@@ -1,5 +1,6 @@
 import { readFileSync } from "node:fs";
 import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
 import { describe, expect, it } from "vitest";
 import { TOOL_FORMATS, type ToolFormat } from "@app/types/toolIO";
 import {
@@ -9,7 +10,7 @@ import {
 
 /** The en-US `[toolFormat]` block, read straight from the locale file. */
 function toolFormatLabels(): Record<string, string> {
-  let current = dirname(new URL(import.meta.url).pathname);
+  let current = dirname(fileURLToPath(import.meta.url));
   for (let i = 0; i < 12; i++) {
     try {
       const toml = readFileSync(