T8943: migrate mirror wrapper to App-ready uniform stub (rollout 1b Task 5)

.github/workflows/pr-mirror-repo-sync.yml

@@ -1,35 +1,30 @@
-name: PR Mirror and Repo Sync
-
-on:
-  pull_request_target:
-    types: [closed]
-    branches: [main]
-  workflow_dispatch:
-    inputs:
-      sync_branch:
-        description: 'Branch to mirror'
-        required: true
-        default: 'main'
-        type: choice
-        options:
-          - main
-
-permissions:
-  pull-requests: write
-  contents: write
-  issues: write
-
-jobs:
-  call-pr-mirror-repo-sync:
-    if: |
-      github.repository_owner == 'vyos' &&
-      (
-        github.event_name == 'workflow_dispatch' ||
-        (github.event_name == 'pull_request_target' && github.event.pull_request.merged == true)
-      )
-    uses: vyos/.github/.github/workflows/pr-mirror-repo-sync.yml@current
-    with:
-      sync_branch: ${{ github.event.inputs.sync_branch || 'main' }}
-    secrets:
-      PAT: ${{ secrets.PAT }}
-      REMOTE_OWNER: ${{ secrets.REMOTE_OWNER }}
+# .github/workflows/pr-mirror-repo-sync.yml
+# DO NOT EDIT — managed by mirror-pipeline rollout.
+# To opt out: set vars.MIRROR_ENABLED=false in this repo's Actions variables.
+name: PR Mirror and Repo Sync
+
+on:
+  pull_request_target:
+    types: [closed]
+    branches: [main]
+  workflow_dispatch:
+    inputs:
+      sync_branch:
+        required: true
+        type: string
+
+permissions:
+  contents: write
+  pull-requests: write
+  issues: write
+
+jobs:
+  call:
+    if: |
+      github.repository_owner == 'vyos'
+      && (github.event.pull_request.merged == true || github.event_name == 'workflow_dispatch')
+      && vars.MIRROR_ENABLED != 'false'
+    uses: vyos/.github/.github/workflows/pr-mirror-repo-sync.yml@current
+    with:
+      sync_branch: ${{ inputs.sync_branch || github.event.pull_request.base.ref }}
+    secrets: inherit