ci: update GitHub Actions workflow configurations

- Update scheduled-checks.yml workflow
- Update update-github-stars.yml workflow
- Improve workflow formatting and consistency

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

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

Author: ericyangpan

.github/workflows/scheduled-checks.yml

@@ -8,6 +8,11 @@ on:
     - cron: '0 6 * * *'
   workflow_dispatch: # Allow manual triggering
 
+permissions:
+  contents: write
+  pull-requests: write
+  issues: write
+
 jobs:
   validate-urls:
     name: Validate URLs

.github/workflows/update-github-stars.yml

@@ -7,6 +7,10 @@ on:
   workflow_dispatch:
     # Allow manual triggering
 
+permissions:
+  contents: write
+  pull-requests: write
+
 jobs:
   update-stars:
     runs-on: ubuntu-latest
@@ -43,6 +47,7 @@ jobs:
         if: steps.git-check.outputs.changes == 'true'
         uses: peter-evans/create-pull-request@v5
         with:
+          token: ${{ secrets.GITHUB_TOKEN }}
           commit-message: 'chore: update GitHub stars data'
           title: 'chore: update GitHub stars data'
           body: |