feat(web): заготовка веб-клиента на Vite + React 19 + TypeScript strict

- стек по §5.2: React 19, React Router, TanStack Query, Zustand, Tailwind CSS 4,
  i18next (ru/en), Vitest + Testing Library
- дизайн-токены §3 docs/client-web.md (тёмная тема по умолчанию, светлая, accent)
- типизированный API-клиент §8.1: единый формат ошибок, ApiError с кодом
- App: экран состояния фундамента с readz/meta, локализация ошибок по code
- тесты: клиент API, форматирование, рендер App (успех/ошибка кода/сеть)
- eslint + prettier + tsc strict; initial JS 97.6 KB gzip

web/package.json

@@ -0,0 +1,51 @@
+{
+  "name": "glchat-web",
+  "private": true,
+  "version": "0.1.0",
+  "license": "AGPL-3.0-or-later",
+  "type": "module",
+  "engines": {
+    "node": ">=22"
+  },
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "check": "tsc --noEmit -p tsconfig.app.json",
+    "lint": "eslint . && prettier --check .",
+    "format": "prettier --write .",
+    "test": "vitest run",
+    "test:watch": "vitest"
+  },
+  "dependencies": {
+    "@tanstack/react-query": "5.103.1",
+    "i18next": "26.4.2",
+    "react": "19.3.0",
+    "react-dom": "19.3.0",
+    "react-i18next": "17.0.14",
+    "react-router": "8.4.0",
+    "zustand": "5.0.15"
+  },
+  "devDependencies": {
+    "@eslint/js": "10.0.1",
+    "@tailwindcss/vite": "4.3.3",
+    "@testing-library/jest-dom": "7.0.1",
+    "@testing-library/react": "16.3.3",
+    "@testing-library/user-event": "14.6.7",
+    "@types/node": "26.6.2",
+    "@types/react": "19.3.0",
+    "@types/react-dom": "19.3.0",
+    "@vitejs/plugin-react": "6.1.1",
+    "eslint": "10.11.0",
+    "eslint-plugin-react-hooks": "7.1.1",
+    "eslint-plugin-react-refresh": "0.5.7",
+    "globals": "17.12.0",
+    "jsdom": "30.1.0",
+    "prettier": "3.9.8",
+    "tailwindcss": "4.3.3",
+    "typescript": "6.0.3",
+    "typescript-eslint": "8.70.0",
+    "vite": "8.3.0",
+    "vitest": "5.0.1"
+  }
+}