fix(portal-shell): 管理域 UI 规范合规与 TypeScript 修复

- 替换 41 处原生 select 为 Select 组件封装

- 替换 5 处 window.confirm 为 shadcn AlertDialog

- 修复 lesson-plans delete-confirm-dialog 为 AlertDialog

- 修复 5 处 Tailwind 任意值 text-[10px]

- 修复 graphql-data.ts mutation case 缺少 id 定义

- 修复 use-position-persistence.ts eslint 规则引用

apps/portal-shell/package.json

@@ -36,6 +36,13 @@
     "@radix-ui/react-tabs": "^1.1.13",
     "@radix-ui/react-tooltip": "^1.2.8",
     "@tailwindcss/typography": "^0.5.16",
+    "@tiptap/core": "^3.29.0",
+    "@tiptap/extension-image": "^3.29.0",
+    "@tiptap/extension-placeholder": "^3.29.0",
+    "@tiptap/extension-underline": "^3.29.0",
+    "@tiptap/pm": "^3.29.0",
+    "@tiptap/react": "^3.29.0",
+    "@tiptap/starter-kit": "^3.29.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "crypto-hash": "^4.0.1",
@@ -48,6 +55,9 @@
     "next-themes": "^0.4.6",
     "react": "^19.2.1",
     "react-dom": "^19.2.1",
+    "react-markdown": "^10.1.0",
+    "recharts": "^3.6.0",
+    "remark-gfm": "^4.0.1",
     "sonner": "^2.0.7",
     "swr": "^2.2.0",
     "tailwind-merge": "^3.4.0",