feat(i18n): add full i18n audit toolchain and pre-commit hook

- 新增 GitHub Actions 工作流实现 PR 时自动审计国际化内容
- 添加 pre-commit 钩子，提交前自动检查相关文件并拦截问题提交
- 编写完整的 i18n 审计脚本、文档与示例报告
- 实现多维度国际化校验：键匹配、占位符、data()误用、硬编码标题等

.github/workflows/i18n-audit.yml

@@ -0,0 +1,33 @@
+# GitHub Actions 示例:i18n audit on PR
+name: i18n-audit
+
+on:
+  pull_request:
+    paths:
+      - 'lang/**'
+      - 'lang-bundle.json'
+      - '**/*.vue'
+      - '**/*.js'
+      - 'scripts/i18n_audit.py'
+      - 'scripts/audit_lang_bundle_v2.py'
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - name: Run i18n audit
+        run: |
+          python scripts/i18n_audit.py --strict
+      - name: Upload audit report
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: i18n-audit-report
+          path: scripts/lang_audit_report_v2.json