feat(examples-chat): cross-stack E2E harness — Phase 2a (infra)

.github/workflows/aimock-drift.yml

@@ -0,0 +1,50 @@
+name: aimock fixture drift
+
+on:
+  schedule:
+    - cron: '0 7 * * *'
+  workflow_dispatch:
+
+jobs:
+  drift:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6.0.2
+      - uses: actions/setup-node@v6.3.0
+        with:
+          node-version: 22
+          cache: npm
+      - run: npm ci
+      - name: Run drift check
+        env:
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        run: npx nx run examples-chat-aimock-e2e:drift --skip-nx-cache
+      - name: Open issue on drift
+        if: failure()
+        uses: actions/github-script@v8
+        with:
+          script: |
+            const { owner, repo } = context.repo;
+            const today = new Date().toISOString().slice(0, 10);
+            const title = `aimock fixture drift detected — ${today}`;
+            const body = [
+              'The scheduled fixture drift check failed.',
+              '',
+              `Workflow run: ${context.serverUrl}/${owner}/${repo}/actions/runs/${context.runId}`,
+              '',
+              'Investigate which fixture drifted and either refresh it intentionally',
+              'or open a PR fixing the regression on the LLM side.',
+            ].join('\n');
+            const existing = await github.rest.issues.listForRepo({
+              owner, repo, labels: 'aimock-drift', state: 'open',
+            });
+            if (existing.data.length === 0) {
+              await github.rest.issues.create({
+                owner, repo, title, body, labels: ['aimock-drift'],
+              });
+            } else {
+              await github.rest.issues.createComment({
+                owner, repo, issue_number: existing.data[0].number,
+                body: `Drift again on ${today}. ${context.serverUrl}/${owner}/${repo}/actions/runs/${context.runId}`,
+              });
+            }

.github/workflows/ci.yml

@@ -125,6 +125,32 @@ jobs:
         run: uv sync
       - run: npx nx run examples-chat-python:smoke --skip-nx-cache
 
+  examples-chat-aimock-e2e:
+    name: examples/chat — aimock e2e
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6.0.2
+      - uses: actions/setup-node@v6.3.0
+        with:
+          node-version: 22
+          cache: npm
+      - name: Install uv
+        uses: astral-sh/setup-uv@v8.0.0
+        with:
+          python-version: '3.12'
+      - run: npm ci
+      - working-directory: examples/chat/python
+        run: uv sync
+      - run: npx playwright install --with-deps chromium
+      - run: npx nx run examples-chat-aimock-e2e:test --skip-nx-cache
+      - name: Upload Playwright trace on failure
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: aimock-e2e-trace
+          path: examples/chat/aimock-e2e/test-results/
+          retention-days: 7
+
   cockpit-e2e:
     name: Cockpit — e2e
     runs-on: ubuntu-latest
@@ -163,6 +189,7 @@ jobs:
         cockpit-secret-integration,
         cockpit-deploy-smoke,
         examples-chat-smoke,
+        examples-chat-aimock-e2e,
         cockpit-e2e,
         website-e2e,
       ]