feat(frontend): bootstrap Vite + React 19 + TS strict toolchain (F0.1)

- Vite 8 / React 19 / TS 6 strict (noUncheckedIndexedAccess, no baseUrl deprecation)
- Tailwind 4 via @tailwindcss/vite (no PostCSS step)
- TanStack Query 5, react-router-dom 7, Recharts, clsx
- Vitest + Testing Library + jsdom for unit tests
- Playwright skeleton + first smoke spec (login redirect)
- ESLint flat config: typescript-eslint type-checked, react-hooks, react-refresh, prettier
- Prettier config (semi, single quotes, 100-col, lf)
- IBM Plex font @font-face declarations targeting /fonts/ (self-host, no CDN — OPSEC)

frontend/package.json

@@ -0,0 +1,53 @@
+{
+  "name": "mimic-frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview",
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "format": "prettier --write .",
+    "format:check": "prettier --check .",
+    "typecheck": "tsc -b --noEmit",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:coverage": "vitest run --coverage",
+    "e2e": "playwright test",
+    "e2e:install": "playwright install --with-deps chromium"
+  },
+  "dependencies": {
+    "@tanstack/react-query": "^5.100.11",
+    "clsx": "^2.1.1",
+    "react": "^19.2.6",
+    "react-dom": "^19.2.6",
+    "react-router-dom": "^7.15.1",
+    "recharts": "^3.8.1"
+  },
+  "devDependencies": {
+    "@eslint/js": "^10.0.1",
+    "@playwright/test": "^1.60.0",
+    "@tailwindcss/vite": "^4.3.0",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@types/node": "^24.12.3",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.1",
+    "@vitest/coverage-v8": "^4.1.7",
+    "eslint": "^10.3.0",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-react-hooks": "^7.1.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.6.0",
+    "jsdom": "^29.1.1",
+    "prettier": "^3.8.3",
+    "tailwindcss": "^4.3.0",
+    "typescript": "~6.0.2",
+    "typescript-eslint": "^8.59.2",
+    "vite": "^8.0.12",
+    "vitest": "^4.1.7"
+  }
+}