ci(release): use PAT_TOKEN for semantic-release branch protection bypass

semantic-release needs to push version bump + CHANGELOG commits directly
to main. GITHUB_TOKEN cannot bypass branch protection rules, causing
@semantic-release/git to fail with "push declined due to repository rule
violations". PAT_TOKEN has admin bypass and resolves the issue.

.github/workflows/release.yml

@@ -20,8 +20,9 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          # Always use the built-in workflow token; PAT rotation/breakage must not block releases.
-          token: ${{ github.token }}
+          # PAT_TOKEN required: semantic-release pushes version bump commits to main,
+          # which needs branch protection bypass. github.token cannot push to protected branches.
+          token: ${{ secrets.PAT_TOKEN }}
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -49,10 +50,10 @@ jobs:
         id: release
         env:
           HUSKY: 0
-          # Use built-in GITHUB_TOKEN for release + issue operations.
-          # Checkout credentials are resolved above with PAT fallback.
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # PAT_TOKEN bypasses branch protection so semantic-release can push
+          # version bump + CHANGELOG commits directly to main
+          GITHUB_TOKEN: ${{ secrets.PAT_TOKEN }}
+          GH_TOKEN: ${{ secrets.PAT_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
         run: |