Add prettier config, format codebase

package.json

@@ -11,6 +11,8 @@
     "build-only": "vite build",
     "type-check": "vue-tsc --build",
     "lint": "eslint . --fix",
+    "format": "prettier --write .",
+    "format:check": "prettier --check .",
     "new:component": "node scripts/generateComponent.js"
   },
   "dependencies": {
@@ -47,6 +49,7 @@
     "jsrepo": "^1.30.1",
     "npm-run-all2": "^8.0.4",
     "postcss": "^8.5.6",
+    "prettier": "^3.6.2",
     "tailwindcss": "^4.1.11",
     "typescript": "~5.8.0",
     "vite": "^7.0.0",