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/student/components/student-schedule-view.tsx

@@ -1,7 +1,7 @@
 import { Card, CardContent, CardHeader, CardTitle } from "@/shared/components/ui/card"
-import { Badge } from "@/shared/components/ui/badge"
 import { EmptyState } from "@/shared/components/ui/empty-state"
-import { CalendarX, Clock, MapPin } from "lucide-react"
+import { CalendarX } from "lucide-react"
+import { ScheduleList } from "@/shared/components/schedule/schedule-list"
 
 import type { StudentScheduleItem } from "@/modules/classes/types"
 
@@ -33,9 +33,8 @@ export function StudentScheduleView({ items }: { items: StudentScheduleItem[] })
     list.push(item)
     itemsByDay.set(item.weekday, list)
   }
-  for (const [day, list] of itemsByDay) {
+  for (const list of itemsByDay.values()) {
     list.sort((a, b) => a.startTime.localeCompare(b.startTime))
-    itemsByDay.set(day, list)
   }
 
   return (
@@ -47,37 +46,15 @@ export function StudentScheduleView({ items }: { items: StudentScheduleItem[] })
             <CardHeader className="pb-3">
               <CardTitle className="text-sm font-medium">{d.label}</CardTitle>
             </CardHeader>
-            <CardContent className="space-y-3">
+            <CardContent>
               {dayItems.length === 0 ? (
                 <div className="text-sm text-muted-foreground">No classes.</div>
               ) : (
-                dayItems.map((item) => (
-                  <div
-                    key={item.id}
-                    className="flex items-start justify-between gap-3 rounded-md border bg-card p-3"
-                  >
-                    <div className="min-w-0 space-y-1">
-                      <div className="font-medium leading-none truncate">{item.course}</div>
-                      <div className="flex flex-wrap items-center gap-x-3 gap-y-1 text-sm text-muted-foreground">
-                        <div className="inline-flex items-center">
-                          <Clock className="mr-1 h-3 w-3" />
-                          <span className="tabular-nums">
-                            {item.startTime}–{item.endTime}
-                          </span>
-                        </div>
-                        {item.location ? (
-                          <div className="inline-flex items-center min-w-0">
-                            <MapPin className="mr-1 h-3 w-3 shrink-0" />
-                            <span className="truncate">{item.location}</span>
-                          </div>
-                        ) : null}
-                      </div>
-                    </div>
-                    <Badge variant="secondary" className="shrink-0">
-                      {item.className}
-                    </Badge>
-                  </div>
-                ))
+                <ScheduleList
+                  items={dayItems}
+                  variant="card"
+                  spacingClassName="space-y-3"
+                />
               )}
             </CardContent>
           </Card>
@@ -86,4 +63,3 @@ export function StudentScheduleView({ items }: { items: StudentScheduleItem[] })
     </div>
   )
 }
-