fix: 修复工作路分支异常，暂存问题

Author: Nickyang00

.github/workflows/auto-changelog.yml

@@ -58,20 +58,21 @@ jobs:
           echo 'Preview:'
           grep -n "^${{ steps.detect.outputs.version }}$" -A12 docs/change_log.md || true
 
-      - name: Commit changes
+      - name: Stage changes
         if: ${{ steps.detect.outputs.update == 'true' }}
         run: |
           set -e
-          git config user.name 'github-actions[bot]'
-          git config user.email 'github-actions[bot]@users.noreply.github.com'
-          branch="chore/changelog-${{ steps.detect.outputs.version }}"
+          # Ensure we are on the correct base branch before staging
           base="${{ steps.detect.outputs.base }}"
+          git checkout -B "$base" "origin/$base"
           
-          # Create new branch from remote base
-          git checkout -b "$branch" "origin/$base"
+          # Run generation again to ensure file is updated in the correct branch context if needed
+          # (Optional, but safe if the previous step modified a file in a detached head or different branch)
+          python .github/scripts/gen_changelog.py "${{ steps.detect.outputs.version }}"
           
+          git config user.name 'github-actions[bot]'
+          git config user.email 'github-actions[bot]@users.noreply.github.com'
           git add docs/change_log.md
-          git commit -m "chore: add changelog for ${{ steps.detect.outputs.version }}"
 
       - name: Create Pull Request
         if: ${{ steps.detect.outputs.update == 'true' }}