feat: add automated UX check

Author: muhammad-ali-pk

.github/workflows/ux-review.yaml

@@ -0,0 +1,28 @@
+name: UX demo review
+
+on:
+  # TEMPORARY: using pull_request to test from this branch before merge.
+  # REVERT to pull_request_target before merging
+  pull_request:
+    types: [labeled]
+
+# Restrictive default for the whole workflow; the job below elevates only what it needs.
+permissions:
+  contents: read
+
+jobs:
+  ux-review:
+    # TEMPORARY: calling the reusable workflow from the upstream
+    # "feat-reusable-workflow" branch for testing before it lands on main.
+    # REVERT to a pinned commit SHA on main before merging for supply-chain safety.
+    uses: canonical/automated-ux-qa-checklist-and-quality-standards/.github/workflows/ux-demo-review.yml@feat-reusable-workflow
+    if: "github.event.label.name == 'Review: UX needed'"
+    with:
+      pr_number: "${{ github.event.pull_request.number }}"
+      # Run the skills repo scripts from the same upstream branch.
+      ref: feat-reusable-workflow
+    secrets:
+      COPILOT_CLI_TOKEN: ${{ secrets.COPILOT_CLI_TOKEN }}
+    permissions:
+      contents: read
+      pull-requests: write