chore(frontend): bundle analyzer via npm run analyze (B4)

frontend/package.json

@@ -9,6 +9,7 @@
     "e2e": "playwright test",
     "e2e:ui": "playwright test --ui",
     "build": "tsc --noEmit && vite build",
+    "analyze": "ANALYZE=1 vite build",
     "preview": "vite preview",
     "check": "tsc --noEmit && eslint . && prettier --check . && vitest run && vite build",
     "lint": "eslint .",
@@ -56,6 +57,7 @@
     "eslint-plugin-react-hooks": "^7.1.1",
     "jsdom": "^30.0.1",
     "prettier": "^3.9.6",
+    "rollup-plugin-visualizer": "^7.1.1",
     "tailwindcss": "^4.3.3",
     "typescript": "npm:@typescript/typescript6@^6.0.2",
     "typescript-eslint": "^8.70.0",