ci(react-doctor): add official PR-review Action, drop redundant CLI step (#1156)

Adds the official react-doctor GitHub Action (millionco/react-doctor@v1),
which posts inline review comments + a sticky summary for issues a PR
INTRODUCES (diffed against the merge-base) -- more visible than the
previous CLI '--annotations' markers.

Removes the now-redundant react-doctor steps from ci.yml (the
detect-changes/diff-annotations/skip steps and the push-time full scan)
so react-doctor runs once per PR, not twice. It reads doctor.config.jsonc,
so the React-Compiler rules we don't enforce stay suppressed.

.github/workflows/ci.yml

@@ -76,30 +76,6 @@ jobs:
       - name: Verify forge config
         run: node -e "import('./forge.config.js').then(c => console.log('Config loaded, makers:', c.default.makers?.length || 0)).catch(e => { console.error(e); process.exit(1); })"
 
-      - name: Detect React UI changes
-        id: react-ui-changes
-        if: github.event_name == 'pull_request'
-        run: |
-          git diff --name-only "${{ github.event.pull_request.base.sha }}" HEAD > changed-files.txt
-          cat changed-files.txt
-          if grep -Eq '^(src/(components|views|hooks|stores)/|src/app\.tsx|src/main\.tsx)' changed-files.txt; then
-            echo "changed=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "changed=false" >> "$GITHUB_OUTPUT"
-          fi
-
-      - name: Run React Doctor
-        if: github.event_name != 'pull_request'
-        run: yarn doctor
-
-      - name: Run React Doctor on changed React files
-        if: github.event_name == 'pull_request' && steps.react-ui-changes.outputs.changed == 'true'
-        run: yarn doctor --diff "${{ github.event.pull_request.base.sha }}" --annotations
-
-      - name: Skip React Doctor
-        if: github.event_name == 'pull_request' && steps.react-ui-changes.outputs.changed != 'true'
-        run: echo "Skipping React Doctor because this pull request did not change React UI source."
-
       - name: Install Chromium for smoke tests
         run: npx playwright install --with-deps chromium
 

.github/workflows/react-doctor.yml

@@ -0,0 +1,28 @@
+# React Doctor PR review.
+# Reports only issues this PR INTRODUCES (diffed against the merge-base) as inline
+# review comments + a sticky summary. It reads doctor.config.jsonc, so the
+# React-Compiler rules we don't enforce stay suppressed (see that file and
+# docs/agent-playbooks/known-surprises.md). We do NOT chase the aggregate score.
+name: React Doctor
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+
+concurrency:
+  group: react-doctor-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  react-doctor:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # so React Doctor can diff against the merge-base for new-vs-existing
+      - uses: millionco/react-doctor@v1