fix: resolve all ruff linting errors and add lint CI check

- Fix ambiguous fullwidth characters (commas, parentheses) in strings and comments
- Replace Chinese comments with English equivalents
- Fix unused imports with proper noqa annotations for intentional imports
- Fix bare except clauses with specific exception types
- Fix redefined variables and undefined names
- Add ruff noqa annotations for generated protobuf files
- Add lint and format check to GitHub Actions CI pipeline

.github/workflows/build-reusable.yml

@@ -10,7 +10,36 @@ on:
         default: ''
 
 jobs:
+  lint:
+    name: Lint and Format Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.ref }}
+      
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      
+      - name: Install uv
+        uses: astral-sh/setup-uv@v4
+      
+      - name: Install dependencies
+        run: |
+          uv sync --dev
+      
+      - name: Run ruff check
+        run: |
+          uv run ruff check .
+      
+      - name: Run ruff format check
+        run: |
+          uv run ruff format --check .
+
   build:
+    needs: lint
     name: Build ${{ matrix.os }} Python ${{ matrix.python }}
     strategy:
       matrix: