chore: add husky pre-commit hook and auto-fix lint warnings

- Install husky for git hooks
- Add pre-commit hook to run 'npm run lint -- --fix' before each commit
- Auto-fix 6 additional warnings (attribute order, escape chars)
- 0 errors, 208 warnings (down from 214)

This ensures code quality checks run automatically before commits.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

docs/.vitepress/theme/components/ReadingProgress.vue

@@ -4,10 +4,10 @@
       v-if="showProgress" 
       class="reading-progress"
       :class="{ 'is-dragging': isDragging }"
+      :title="isDragging ? '拖动调整位置' : '阅读进度 ' + progress + '%'"
       @mousedown="startDrag"
       @touchstart="startDrag"
       @click="handleClick"
-      :title="isDragging ? '拖动调整位置' : '阅读进度 ' + progress + '%'"
     >
       <svg class="progress-ring" viewBox="0 0 56 56">
         <circle