Add close-issues script and GitHub Action

- Create script/github/close-issues.ts to close stale issues after 60 days
- Add GitHub Action workflow to run daily at 2 AM
- Remove old stale-issues workflow to avoid conflicts

.github/workflows/close-issues.yml

@@ -0,0 +1,23 @@
+name: close-issues
+
+on:
+  schedule:
+    - cron: "0 2 * * *" # Daily at 2:00 AM
+  workflow_dispatch:
+
+jobs:
+  close:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Close stale issues
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: bun script/github/close-issues.ts

.github/workflows/stale-issues.yml

@@ -1,34 +0,0 @@
-name: stale-issues
-
-on:
-  schedule:
-    - cron: "30 1 * * *" # Daily at 1:30 AM
-  workflow_dispatch:
-
-env:
-  DAYS_BEFORE_STALE: 90
-  DAYS_BEFORE_CLOSE: 7
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/stale@v10.2.0
-        with:
-          operations-per-run: 1000
-          days-before-stale: ${{ env.DAYS_BEFORE_STALE }}
-          days-before-close: ${{ env.DAYS_BEFORE_CLOSE }}
-          stale-issue-label: "stale"
-          close-issue-message: |
-            [automated] Closing due to ${{ env.DAYS_BEFORE_STALE }}+ days of inactivity.
-
-            Feel free to reopen if you still need this!
-          stale-issue-message: |
-            [automated] This issue has had no activity for ${{ env.DAYS_BEFORE_STALE }} days.
-
-            It will be closed in ${{ env.DAYS_BEFORE_CLOSE }} days if there's no new activity.
-          remove-stale-when-updated: true
-          exempt-issue-labels: "pinned,security,feature-request,on-hold"
-          start-date: "2025-12-27"