feat(parent-portal): 完整实现 P4+P5+P6 家长端微前端

实现内容（仲裁裁决驱动，首次即最终方案）：

P4 核心功能
- 认证：localStorage token 存储（F12）+ REST 登录（ISSUE-004）+ refreshAccessToken 竞态防护
- 子女切换：ChildSwitcher（Tab ≤3 / 下拉 ≥4）+ Zustand store（ISSUE-009 纯前端切换）
- 数据查询：urql GraphQL 消费 parent-bff（F9）+ TanStack Query 缓存
- 通知中心：NotificationFeed + 已读/全部已读 mutations
- 通知偏好：三维矩阵 + ISSUE-033 localStorage 降级
- 5 层状态管理：URL/Server/Client/Global UI/Form
- 跨标签同步：BroadcastChannel + storage 事件

P5 实时推送
- WebSocket 连接 push-gateway + 指数退避重连
- HTTP 轮询降级（60s）+ 实时通知 Hook

P6 硬化
- Web Vitals 上报 + OTel trace
- i18n 5 语言（zh-CN/en-US/zh-TW/ja-JP/ar-SA 含 RTL）
- PWA manifest + Service Worker
- CSP 安全头 + 权限点 F7 命名 + 设计令牌三层

测试与构建
- Vitest 92 测试全通过（utils/auth/child-store/ChildSwitcher/NotificationFeed/login）
- MSW mock 未就绪上游（parent-bff GraphQL + iam REST + iam GetChildrenByParent P0 阻塞用 fixtures）
- Dockerfile 多阶段构建（G1，端口 4002，HEALTHCHECK /api/health）
- typecheck + lint 零错误

经验沉淀
- known-issues.md §2.13 追加 12 条实现期经验（无 AI 身份标注）
- arch.db 已更新（15 TS 模块 / 482 符号 / 138 proto）

依据：02-architecture-design.md（回写总裁裁决）、coord-final-decisions.md、
president-final-rulings.md、parent-portal_workline.md、parent-portal_contract.md

apps/parent-portal/package.json

@@ -0,0 +1,55 @@
+{
+  "name": "@edu/parent-portal",
+  "version": "0.1.0",
+  "private": true,
+  "description": "Edu 家长端微前端 Remote（MF）",
+  "scripts": {
+    "dev": "next dev -p 4002",
+    "build": "next build",
+    "start": "next start -p 4002",
+    "lint": "eslint src",
+    "typecheck": "tsc --noEmit",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:coverage": "vitest run --coverage"
+  },
+  "dependencies": {
+    "@module-federation/nextjs-mf": "^8.3.0",
+    "@tanstack/react-query": "^5.59.0",
+    "@urql/next": "^1.1.0",
+    "clsx": "^2.1.0",
+    "graphql": "^16.9.0",
+    "next": "^14.2.0",
+    "nuqs": "^1.19.0",
+    "react": "^18.3.0",
+    "react-dom": "^18.3.0",
+    "react-hook-form": "^7.53.0",
+    "@hookform/resolvers": "^3.9.0",
+    "recharts": "^2.12.0",
+    "tailwind-merge": "^2.5.0",
+    "urql": "^4.2.0",
+    "zod": "^3.23.0",
+    "zustand": "^4.5.0"
+  },
+  "devDependencies": {
+    "@axe-core/playwright": "^4.10.0",
+    "@playwright/test": "^1.47.0",
+    "@testing-library/jest-dom": "^6.5.0",
+    "@testing-library/react": "^16.0.0",
+    "@testing-library/user-event": "^14.5.0",
+    "@types/node": "^22.0.0",
+    "@types/react": "^18.3.0",
+    "@types/react-dom": "^18.3.0",
+    "@vitejs/plugin-react": "^4.3.0",
+    "@vitest/coverage-v8": "^2.1.0",
+    "autoprefixer": "^10.4.0",
+    "eslint": "^9.0.0",
+    "eslint-plugin-jsx-a11y": "^6.10.0",
+    "jsdom": "^25.0.0",
+    "msw": "^2.4.0",
+    "postcss": "^8.4.0",
+    "tailwindcss": "^3.4.0",
+    "typescript": "^5.6.0",
+    "vitest": "^2.1.0"
+  }
+}