Convert CI auto-sort system to Gitea Actions

- Move workflow from ci/auto-sort-files.yml to .gitea/workflows/auto-sort-files.yml
- Update workflow to use CI_BOT_TOKEN secret for Gitea authentication
- Configure proper git push URL for Gitea repository
- Update ci/README.md with comprehensive Gitea Actions setup instructions
- Add GITEA-ACTIONS-SETUP.md with detailed configuration guide
- Update README.md to reference Gitea Actions setup documentation
- Remove old GitHub Actions workflow file
- Provide step-by-step token creation and repository secret configuration
- Include troubleshooting guide and security considerations

.gitea/workflows/auto-sort-files.yml

@@ -0,0 +1,111 @@
+# Gitea Actions Auto-Sort Configuration for Datasheets and Images
+# This workflow automatically moves files with specific prefixes to their correct directories
+
+name: Auto-Sort Files
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  auto-sort:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        token: ${{ secrets.CI_BOT_TOKEN }}
+
+    - name: Auto-sort datasheets and images
+      run: |
+        #!/bin/bash
+        set -e
+        
+        # Flag to track if any files were moved
+        FILES_MOVED=false
+        
+        # Function to move files with logging
+        move_file() {
+          local src="$1"
+          local dest="$2"
+          local dest_dir=$(dirname "$dest")
+          
+          # Create destination directory if it doesn't exist
+          mkdir -p "$dest_dir"
+          
+          # Move file if it's not already in the correct location
+          if [ "$src" != "$dest" ] && [ -f "$src" ]; then
+            echo "Moving: $src -> $dest"
+            mv "$src" "$dest"
+            FILES_MOVED=true
+          fi
+        }
+        
+        # Find and move datasheet files (DS_ prefix)
+        echo "Searching for datasheet files with DS_ prefix..."
+        find . -name "DS_*.pdf" -o -name "DS_*.doc" -o -name "DS_*.docx" -o -name "DS_*.txt" | while read file; do
+          # Skip files already in docs/datasheets/
+          if [[ "$file" != ./docs/datasheets/* ]]; then
+            filename=$(basename "$file")
+            move_file "$file" "docs/datasheets/$filename"
+          fi
+        done
+        
+        # Find and move image files (IMG_ prefix)
+        echo "Searching for image files with IMG_ prefix..."
+        find . -name "IMG_*.png" -o -name "IMG_*.jpg" -o -name "IMG_*.jpeg" -o -name "IMG_*.svg" -o -name "IMG_*.gif" -o -name "IMG_*.pdf" -o -name "IMG_*.webp" | while read file; do
+          # Skip files already in docs/images/
+          if [[ "$file" != ./docs/images/* ]]; then
+            filename=$(basename "$file")
+            move_file "$file" "docs/images/$filename"
+          fi
+        done
+        
+        # Check if any files were moved
+        if [ "$FILES_MOVED" = true ]; then
+          echo "Files were moved. Setting output for commit step."
+          echo "files_moved=true" >> $GITHUB_OUTPUT
+        else
+          echo "No files needed to be moved."
+          echo "files_moved=false" >> $GITHUB_OUTPUT
+        fi
+      id: sort_files
+
+    - name: Commit moved files
+      if: steps.sort_files.outputs.files_moved == 'true'
+      run: |
+        git config --local user.email "ci-bot@b4l.co.th"
+        git config --local user.name "B4L CI Auto-Sort Bot"
+        git add docs/datasheets/ docs/images/
+        git commit -m "Auto-sort: Move DS_ and IMG_ prefixed files to correct directories
+        
+        - Moved datasheet files (DS_*) to docs/datasheets/
+        - Moved image files (IMG_*) to docs/images/
+        - Automated by Gitea Actions auto-sort workflow"
+        
+    - name: Push changes
+      if: steps.sort_files.outputs.files_moved == 'true'
+      run: |
+        git push https://ci-bot:${{ secrets.CI_BOT_TOKEN }}@git.b4l.co.th/B4L/b4l-project-template.git HEAD:${{ github.ref_name }}
+
+    - name: Create summary
+      run: |
+        echo "## Auto-Sort Results" >> $GITHUB_STEP_SUMMARY
+        echo "" >> $GITHUB_STEP_SUMMARY
+        if [ "${{ steps.sort_files.outputs.files_moved }}" = "true" ]; then
+          echo "✅ Files were automatically moved to correct directories" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
+          echo "### Moved Files:" >> $GITHUB_STEP_SUMMARY
+          echo "- Datasheet files (DS_*) → docs/datasheets/" >> $GITHUB_STEP_SUMMARY
+          echo "- Image files (IMG_*) → docs/images/" >> $GITHUB_STEP_SUMMARY
+        else
+          echo "ℹ️ No files needed to be moved - all files are properly organized" >> $GITHUB_STEP_SUMMARY
+        fi
+        echo "" >> $GITHUB_STEP_SUMMARY
+        echo "### Supported Prefixes:" >> $GITHUB_STEP_SUMMARY
+        echo "- **DS_**: Datasheets (PDF, DOC, DOCX, TXT)" >> $GITHUB_STEP_SUMMARY
+        echo "- **IMG_**: Images (PNG, JPG, SVG, GIF, PDF, WEBP)" >> $GITHUB_STEP_SUMMARY