chore: add Husky hooks for commitlint and lint-staged

- Install Husky with commit-msg and pre-commit hooks
- Add commitlint CLI and conventional config for enforcing commit message standards
- Configure pre-commit to run lint-staged for code quality checks
- Update bun.lock with new dev dependencies

This setup ensures consistent commit messages and automated linting before commits.

package.json

@@ -6,12 +6,16 @@
     "dev": "astro dev",
     "build": "astro build",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "prepare": "bun .husky/install.mts"
   },
   "dependencies": {
     "astro": "^5.17.1"
   },
   "devDependencies": {
-    "@biomejs/biome": "2.3.13"
+    "@biomejs/biome": "2.3.13",
+    "@commitlint/cli": "^20.4.1",
+    "@commitlint/config-conventional": "^20.4.1",
+    "husky": "^9.1.7"
   }
 }