ci(e2e): add daily scheduled run with failure notification

- Run E2E tests daily at 0:00 GMT (8:00 AM Shanghai time)
- Create GitHub issue on failure with 'e2e-failure' label
- Reuse existing issue by adding comments on subsequent failures
- Only notify on scheduled run failures, not on success

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: fengmk2

.github/workflows/e2e-test.yml

@@ -4,6 +4,9 @@ permissions: {}
 
 on:
   workflow_dispatch:
+  schedule:
+    # Run every day at 0:00 GMT (8:00 AM Singapore time)
+    - cron: '0 0 * * *'
   push:
     branches:
       - main
@@ -156,3 +159,46 @@ jobs:
       - name: Run vite-plus commands in ${{ matrix.project.name }}
         working-directory: ecosystem-ci/${{ matrix.project.name }}
         run: ${{ matrix.project.command }}
+
+  notify-failure:
+    name: Notify on failure
+    runs-on: ubuntu-latest
+    needs: e2e-test
+    # debug
+    # if: ${{ failure() && github.event_name == 'schedule' }}
+    permissions:
+      issues: write
+    steps:
+      - name: Create or update GitHub issue on failure
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+        run: |
+          ISSUE_TITLE="E2E Test Scheduled Run Failed"
+          ISSUE_LABEL="e2e-failure"
+          RUN_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+
+          # Search for existing open issue with the label
+          EXISTING_ISSUE=$(gh issue list --label "$ISSUE_LABEL" --state open --json number --jq '.[0].number')
+
+          if [ -z "$EXISTING_ISSUE" ]; then
+            # Create new issue if none exists
+            gh issue create \
+              --title "$ISSUE_TITLE" \
+              --label "$ISSUE_LABEL" \
+              --body "The scheduled E2E test run has failed.
+
+          **Failed Run:** $RUN_URL
+          **Time:** $(date -u '+%Y-%m-%d %H:%M:%S UTC')
+
+          Please investigate the failure and fix any issues."
+            echo "Created new issue"
+          else
+            # Add comment to existing issue
+            gh issue comment "$EXISTING_ISSUE" \
+              --body "The scheduled E2E test run has failed again.
+
+          **Failed Run:** $RUN_URL
+          **Time:** $(date -u '+%Y-%m-%d %H:%M:%S UTC')"
+            echo "Added comment to issue #$EXISTING_ISSUE"
+          fi