chore: add a bunch of automations (#1132)

* chore: add a bunch of automations

* chore: run format

* Update .github/scripts/auto-close-duplicates.mjs

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* chore: run format

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

.github/workflows/backfill-duplicate-comments.yml

@@ -0,0 +1,46 @@
+name: Backfill Duplicate Comments
+# description: Triggers duplicate detection for old issues that don't have duplicate comments
+
+on:
+  workflow_dispatch:
+    inputs:
+      days_back:
+        description: "How many days back to look for old issues"
+        required: false
+        default: "90"
+        type: string
+      dry_run:
+        description: "Dry run mode (true to only log what would be done)"
+        required: false
+        default: "true"
+        type: choice
+        options:
+          - "true"
+          - "false"
+
+jobs:
+  backfill-duplicate-comments:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    permissions:
+      contents: read
+      issues: read
+      actions: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Backfill duplicate comments
+        run: node .github/scripts/backfill-duplicate-comments.mjs
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_REPOSITORY_OWNER: ${{ github.repository_owner }}
+          GITHUB_REPOSITORY_NAME: ${{ github.event.repository.name }}
+          DAYS_BACK: ${{ inputs.days_back }}
+          DRY_RUN: ${{ inputs.dry_run }}