chore: add prettier

.prettierrc

@@ -0,0 +1,9 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "jsxSingleQuote": true,
+  "arrowParens": "always",
+  "trailingComma": "none",
+  "bracketSpacing": true,
+  "useTabs": true
+}

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "next": "16.2.9",
+        "prettier": "^3.8.4",
         "react": "19.2.4",
         "react-dom": "19.2.4",
         "zustand": "^5.0.14"
@@ -5494,6 +5495,21 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/prettier": {
+      "version": "3.8.4",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.4.tgz",
+      "integrity": "sha512-N2MylSdi48+5N/6S5j+maeHbUSIzzZ5uOcX5Hm4QpV8Dkb1HFjfAKTKX6yNPJQD9AhcT3ifHNB66tWTTJDi11Q==",
+      "license": "MIT",
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/prop-types": {
       "version": "15.8.1",
       "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",

package.json

@@ -6,10 +6,13 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "eslint"
+    "lint": "eslint",
+    "format": "prettier --check './{app,lib,store,styles,components}/**/*.{js,jsx,ts,tsx,css,md,json}' --config ./.prettierrc",
+    "format:apply": "prettier --write './{app,lib,store,styles,components}/**/*.{js,jsx,ts,tsx,css,md,json}' --config ./.prettierrc"
   },
   "dependencies": {
     "next": "16.2.9",
+    "prettier": "^3.8.4",
     "react": "19.2.4",
     "react-dom": "19.2.4",
     "zustand": "^5.0.14"