feat(frontend): biome

frontend/package.json

@@ -10,7 +10,8 @@
     "build:embed": "NEXT_STANDALONE_EXPORT=true next build",
     "start": "next start -p 3010",
     "lint": "eslint",
-    "format": "eslint . --fix --max-warnings 0 && prettier --write ."
+    "format": "biome format --write .",
+    "format:check": "biome format ."
   },
   "dependencies": {
     "@codemirror/lang-sql": "^6.10.0",
@@ -82,6 +83,7 @@
     "zod": "^4.1.12"
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.5.5",
     "@eslint/eslintrc": "^3",
     "@tailwindcss/postcss": "^4",
     "@tailwindcss/typography": "^0.5.19",
@@ -95,7 +97,6 @@
     "eslint-config-next": "15.5.6",
     "eslint-plugin-unused-imports": "^4.4.1",
     "jsdom": "^29.1.1",
-    "prettier": "^3.9.5",
     "tailwindcss": "^4",
     "tw-animate-css": "^1.4.0",
     "typescript": "^5.9.3",