fix(frontend): prettier config

frontend/.prettierignore

@@ -0,0 +1,7 @@
+.next/
+node_modules/
+out/
+coverage/
+public/
+next-env.d.ts
+pnpm-lock.yaml

frontend/.prettierrc.json

@@ -0,0 +1,14 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "jsxSingleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 80,
+  "tabWidth": 2,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "bracketSameLine": false,
+  "arrowParens": "always",
+  "endOfLine": "lf",
+  "proseWrap": "preserve"
+}

frontend/package.json

@@ -9,7 +9,8 @@
     "build": "next build",
     "build:embed": "NEXT_STANDALONE_EXPORT=true next build",
     "start": "next start -p 3010",
-    "lint": "eslint"
+    "lint": "eslint",
+    "format": "prettier --write ."
   },
   "dependencies": {
     "@codemirror/lang-sql": "^6.10.0",
@@ -92,6 +93,7 @@
     "eslint": "^9",
     "eslint-config-next": "15.5.6",
     "jsdom": "^29.1.1",
+    "prettier": "^3.9.5",
     "tailwindcss": "^4",
     "tw-animate-css": "^1.4.0",
     "typescript": "^5.9.3",

frontend/pnpm-lock.yaml

@@ -243,6 +243,9 @@ importers:
       jsdom:
         specifier: ^29.1.1
         version: 29.1.1
+      prettier:
+        specifier: ^3.9.5
+        version: 3.9.5
       tailwindcss:
         specifier: ^4
         version: 4.1.16
@@ -3807,6 +3810,11 @@ packages:
     resolution: {integrity: sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==}
     engines: {node: '>= 0.8.0'}
 
+  prettier@3.9.5:
+    resolution: {integrity: sha512-/FVl766LpUfB5vXgCYOYa0MeV/441Ia99AeICQIQFTY/Nw0roZwULcXpku5i1/m5kt/baz+s4Zogspd839HSMg==}
+    engines: {node: '>=14'}
+    hasBin: true
+
   pretty-format@27.5.1:
     resolution: {integrity: sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==}
     engines: {node: ^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0}
@@ -8404,6 +8412,8 @@ snapshots:
 
   prelude-ls@1.2.1: {}
 
+  prettier@3.9.5: {}
+
   pretty-format@27.5.1:
     dependencies:
       ansi-regex: 5.0.1