docs: enhance TOC generation workflow to trigger on push events

.github/workflows/build-toc.yaml

@@ -1,15 +1,48 @@
-name: Generate TOC on PR Merge
+name: Generate TOC on PR Merge or Push
 
 on:
+  # Trigger on PR merge
   pull_request_target:
     types:
       - closed
     branches:
       - main
+  # Trigger on direct pushes to main branch
+  push:
+    branches:
+      - main
 
 jobs:
-  if_merged:
-    if: github.event.pull_request.merged == true
+  build_toc_on_pr_merge:
+    if: github.event_name == 'pull_request_target' && github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python 3
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.x'
+
+      - name: Run TOC generation script
+        run: |
+          chmod +x .scripts/idxtool.py
+          python3 .scripts/idxtool.py --toc
+
+      - name: Commit TOC updates
+        run: |
+          git config --global user.name 'LouisShark'
+          git config --global user.email '[email protected]'
+          git add .
+          git commit -m "docs: Update TOC.md" || echo "No changes to commit"
+          git pull --rebase
+          git push origin HEAD:main
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  build_toc_on_push:
+    if: github.event_name == 'push'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository