ci(ui): add github workflows and issue templates

.github/workflows/stale.yml

@@ -0,0 +1,37 @@
+name: Stale Issues
+
+on:
+  schedule:
+    - cron: '30 1 * * *'
+  workflow_dispatch:
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/stale@v9
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-issue-stale: 60
+          days-before-issue-close: 14
+          days-before-pr-stale: 30
+          days-before-pr-close: 14
+          stale-issue-message: |
+            This issue has been automatically marked as stale because it has not had recent activity.
+            It will be closed if no further activity occurs within 14 days.
+            Thank you for your contributions.
+          stale-pr-message: |
+            This PR has been automatically marked as stale because it has not had recent activity.
+            It will be closed if no further activity occurs within 14 days.
+            Thank you for your contributions.
+          close-issue-message: |
+            This issue was closed because it has been stalled for 14 days with no activity.
+          close-pr-message: |
+            This PR was closed because it has been stalled for 14 days with no activity.
+          stale-issue-label: 'stale'
+          stale-pr-label: 'stale'
+          exempt-issue-labels: 'pinned,security,bug'
+          exempt-pr-labels: 'pinned,security'