feat: 新增备课模块并修复全模块 P0/P1/P2 缺陷
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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)
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@@ -12,3 +12,54 @@ export function formatDate(date: string | Date, locale: string = "zh-CN") {
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day: "numeric",
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}).format(new Date(date))
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}
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/** Next.js App Router 搜索参数类型 */
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export type SearchParams = { [key: string]: string | string[] | undefined }
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/** 从 SearchParams 中安全提取单个字符串值 */
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export function getSearchParam(params: SearchParams, key: string): string | undefined {
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const v = params[key]
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if (typeof v === "string") return v
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if (Array.isArray(v)) return v[0]
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return undefined
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}
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/** 格式化数字,null/undefined/非有限数返回 "-" */
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export function formatNumber(v: number | null | undefined, digits = 1): string {
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if (typeof v !== "number" || !Number.isFinite(v)) return "-"
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return v.toFixed(digits)
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}
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/**
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* 从姓名生成头像占位用的首字母(最多 2 个字符)。
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* 用于 AvatarFallback 组件。
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* - 含空格的姓名:取各单词首字母拼接(如 "John Doe" -> "JD")
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* - 无空格的姓名:取前 2 个字符(如 "张三" -> "张三")
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* - 空值:返回 "U"(User 通用占位)
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*/
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export function getInitials(name: string | null | undefined): string {
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if (!name) return "U"
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const trimmed = name.trim()
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if (!trimmed) return "U"
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if (trimmed.includes(" ")) {
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return trimmed
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.split(/\s+/)
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.map((n) => n[0])
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.join("")
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.toUpperCase()
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.slice(0, 2)
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}
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return trimmed.slice(0, 2).toUpperCase()
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}
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/**
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* 格式化日期为文件名安全的 YYYY-MM-DD 格式。
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* 用于导出文件名(如 `grades_export_2026-06-20.xlsx`)。
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* @param d 日期对象,默认为当前时间
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*/
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export function formatDateForFile(d: Date = new Date()): string {
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const y = d.getFullYear()
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const m = String(d.getMonth() + 1).padStart(2, "0")
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const day = String(d.getDate()).padStart(2, "0")
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return `${y}-${m}-${day}`
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}
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