feat: 新增备课模块并修复全模块 P0/P1/P2 缺陷

主要变更:

- 新增 lesson-preparation 模块: 备课编辑器、节点编辑、AI 建议、知识点选择、版本历史、作业发布

- 新增 shared 通用组件: charts/question-bank-filters/schedule-list/ui (chip-nav/filter-bar/page-header/stat-card/stat-item)

- 新增 student/admin 端 loading.tsx 与 error.tsx, 优化加载与错误态体验

- 新增 teacher/lesson-plans 页面 (列表/新建/编辑)

- 新增 drizzle 迁移 0002_tiny_lionheart 及 snapshot

- 新增 textbooks/schema.ts 与 exams/utils/normalize-structure.ts

- 修复 Tiptap v3 SSR hydration 崩溃 (rich-text-block immediatelyRender: false)

- 重构多模块 data-access/actions/组件, 修复权限校验与类型规范

- 同步架构文档 004/005 反映新增模块、导出、依赖关系

- 归档 bugs/* 测试报告与 e2e 测试脚本 (admin/parent/student/teacher web_test)

src/modules/elective/components/elective-course-list.tsx

@@ -28,12 +28,12 @@ import {
 export function ElectiveCourseList({
   courses,
   createHref,
-  editHrefBuilder,
+  editBaseHref,
   canManage,
 }: {
   courses: ElectiveCourseWithDetails[]
   createHref?: string
-  editHrefBuilder?: (id: string) => string
+  editBaseHref?: string
   canManage?: boolean
 }) {
   const router = useRouter()
@@ -165,13 +165,13 @@ export function ElectiveCourseList({
 
                   {manageResolved ? (
                     <div className="mt-auto flex flex-wrap gap-2 pt-2">
-                      {editHrefBuilder ? (
+                      {editBaseHref ? (
                         <Button
                           asChild
                           variant="outline"
                           size="sm"
                         >
-                          <a href={editHrefBuilder(course.id)}>
+                          <a href={`${editBaseHref}/${course.id}/edit`}>
                             <Pencil className="mr-1 h-3 w-3" />
                             Edit
                           </a>