feat: 配置 git pre-commit hook — 提交前自动运行 Biome 检查

使用 .githooks/ 目录 + core.hooksPath 方案，零依赖。
prepare script 确保 bun install 后自动激活。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -15,7 +15,8 @@
         "prepublishOnly": "bun run build",
         "lint": "biome check src/",
         "lint:fix": "biome check --fix src/",
-        "format": "biome format --write src/"
+        "format": "biome format --write src/",
+        "prepare": "git config core.hooksPath .githooks"
     },
     "dependencies": {
         "@alcalzone/ansi-tokenize": "^0.3.0",