chore: clean up main branch and sync win32-x64 prebuilt artifacts (#93)

- cli(cef): remove legacy `.cef-cache` migration code from `ensure_cef_cache`;
  the migration was tagged legacy at package isolation (a6b05f1) and the
  project is pre-0.1.x, so existing `.cef-cache` users re-download to the
  new `.proton/cache/cef` or global `~/.proton/cache/cef` location.
- ci(windows): add `$ErrorActionPreference = "Stop"` and
  `$PSNativeCommandUseErrorActionPreference = $true` to the
  "Test extensions on Windows" and "Build examples on Windows" steps.
  Without these, `moon.exe` returning a non-zero exit code was silently
  swallowed by PowerShell, leaving CI green while tests were actually
  failing (matching the pattern already used by the
  "Check framework modules on Windows" and "Run MoonBit CDP e2e on Windows"
  steps).
- fs(test): the `fs permission resolution anchors relative paths to the
  trusted base` assertion built its expected root path with
  `base.join("workspace").normalize()`, missing the `.resolve()` call that
  `resolve_path_against_base` actually performs on the trusted base. On
  Windows this produced a drive-less `\trusted\app\workspace` expectation
  while the code correctly resolves to `D:\trusted\app\workspace`. Use
  `canonical_base` (which already applies `.resolve()`) to align the
  expectation with the implementation.
- prebuilt(win32-x64): rebuild `proton.dll` and `proton.lib` in Release
  mode from current `main` source and sync into
  `proton/prebuilt/win32-x64/`. The committed artifacts were stale and
  missing the `proton_window_*`, `proton_view_*`, and other newer ABI
  exports declared in `native/include/proton_native.h`, causing
  `node scripts/verify_prebuilt_abi.mjs win32-x64` to fail. After sync the
  ABI validator reports `[OK] Proton win32-x64 prebuilt exports the
  complete public ABI.`

Validation:
  moon fmt --check
  node scripts/verify_generated.mjs
  node scripts/verify_prebuilt_abi.mjs win32-x64
  ctest --test-dir native\build-release -C Release --output-on-failure
  moon check --target native --deny-warn
  moon -C proton test native --target native
  moon -C cli test -p ... --target native --no-parallelize
  moon -C extensions test -p ... --target native
  moon test -p .../ffi ... --target native
  moon -C examples build --target native
  moon -C e2e build --target native

Author: justjavac

.github/workflows/ci.yml

@@ -269,6 +269,8 @@ jobs:
           _CL_: /utf-8
           PATH: ${{ github.workspace }}\lib;${{ env.PATH }}
         run: |
+          $ErrorActionPreference = "Stop"
+          $PSNativeCommandUseErrorActionPreference = $true
           $extensionPackages = @(
             "moonbit-community/proton_ext"
             "moonbit-community/proton_ext/auto_launch"
@@ -305,6 +307,8 @@ jobs:
         env:
           _CL_: /utf-8
         run: |
+          $ErrorActionPreference = "Stop"
+          $PSNativeCommandUseErrorActionPreference = $true
           moon -C examples build --target native
 
       - name: List Windows example binaries

cli/cef/cef_cache.mbt

@@ -156,19 +156,6 @@ async fn ensure_cef_cache(
     normalize_cef_runtime_layout(cache_dir)
     return cache_dir
   }
-  let legacy_cache = @fsutil.path_join(root, ".cef-cache")
-  if installed_version(legacy_cache) == name &&
-    installed_checksum(legacy_cache) == sha256 {
-    install_cef_root(
-      extracted_root=legacy_cache,
-      install_dir=cache_dir,
-      name~,
-      sha256~,
-      root~,
-      platform~,
-    )
-    return cache_dir
-  }
   if project_cache != cache_dir &&
     installed_version(project_cache) == name &&
     installed_checksum(project_cache) == sha256 {

extensions/fs/fs_wbtest.mbt

@@ -287,7 +287,11 @@ test "fs permission resolution anchors relative paths to the trusted base" {
     root.get("path"),
     Some(
       Json::string(
-        @mbpath.Path(path_for_platform(base.join("workspace").to_string()))
+        @mbpath.Path(
+          path_for_platform(
+            @mbpath.Path(canonical_base).join("workspace").to_string(),
+          ),
+        )
         .normalize()
         .to_string(),
       ),