feat: add daily release check workflow

.github/workflows/daily-release-check.yml

@@ -0,0 +1,28 @@
+name: Daily Release Check
+
+on:
+  schedule:
+    - cron: '0 0 * * *'  # Run at midnight UTC daily
+  workflow_dispatch:  # Allow manual triggers
+
+jobs:
+  check-releases:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Need full history for git log
+      
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+          
+      - name: Install dependencies
+        run: |
+          python -m pip install semver PyGithub rich toml click
+          
+      - name: Run release check
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: python scripts/weekly-release.py --dry-run