feat(portal-shell): lesson-plans 模块 6 页迁移（教师域 §9.1 B2）

§9.1 line 629 教师域 lesson-plans 行：
- /lesson-plans (列表) / /new (表单) / /library (教案库)
- /calendar (日历) / /heatmap (热力图) / /[planId]/edit (工作台)
契约：全 ❌ schema 无 → MSW 兜底 + @contract-pending

新增文件：
- src/lib/api/lesson-plans.ts (8 hooks)
- src/lib/api/operations/lesson-plans.graphql.ts (8 documents)
- src/features/teacher/lesson-plans/ (clients + transformations + tests)
- src/app/shell/teacher/lesson-plans/ (6 page.tsx + loading.tsx + error.tsx)

修改文件：
- src/mocks/graphql-data.ts (mock 数据 + handler cases)
- src/messages/{zh-CN,en}.json (lessonPlans i18n 命名空间)
- src/lib/api/{index,operations/index}.ts (导出 lesson-plans)
- src/shared/lib/route-permissions.ts (lesson-plans 路由权限声明)
- scripts/check-page-count.ts (baseline 31 → 37)

DoD 验收（§11.3 11 项）：
- typecheck 0 errors
- lint 0 errors
- vitest 405 tests passed (新增 48 tests)
- lint:tokens 0 errors
- check:pages 37 PASS
- route-permissions 已声明
- 三态（loading/error/empty）齐备
- @contract-pending + MSW 兜底
- i18n zh-CN + en 同步

关联：ARCHITECTURE.md §5.3 / §5.4 / §9.1 / §10 P2 / §11.3 / §11.4
契约工单：docs/architecture/issues/contracts/core-edu_contract.md

apps/portal-shell/src/app/shell/teacher/lesson-plans/[planId]/edit/page.tsx

@@ -0,0 +1,27 @@
+import { Suspense } from "react";
+
+import { LessonPlanEditClient } from "@/features/teacher/lesson-plans/lesson-plan-edit-client";
+import { WorkbenchPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 教案编辑工作台页（ARCHITECTURE.md §7.3 工作台页 / §9.1 / §10 P2）
+ *
+ * Server Component 入口：仅负责 Suspense 边界包裹（useParams 要求）。
+ *
+ * 数据契约（@contract-pending 全 MSW）：
+ * - lessonPlan(id) ❌ → MSW 兜底
+ * - updateLessonPlan(input) mutation ❌ → MSW 兜底
+ *
+ * 契约工单：
+ * - docs/architecture/issues/contracts/core-edu_contract.md#lesson-plan-detail
+ * - docs/architecture/issues/contracts/core-edu_contract.md#update-lesson-plan
+ *
+ * 关联：ARCHITECTURE.md §5.3 / §5.4 / §7.3 / §9.1 / §10 P2 / §11.3 / §11.4
+ */
+export default function LessonPlanEditPage(): React.ReactElement {
+  return (
+    <Suspense fallback={<WorkbenchPageSkeleton />}>
+      <LessonPlanEditClient />
+    </Suspense>
+  );
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/calendar/page.tsx

@@ -0,0 +1,22 @@
+import { Suspense } from "react";
+
+import { LessonPlanCalendarClient } from "@/features/teacher/lesson-plans/lesson-plan-calendar-client";
+import { DetailPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 教案日历视图页（ARCHITECTURE.md §7.3 详情页 / §9.1 / §10 P2）
+ *
+ * Server Component 入口：仅负责 Suspense 边界包裹（useSearchParams 要求）。
+ *
+ * 数据契约：查询 lessonPlanCalendar(month) ❌ schema 无此字段 → MSW 兜底（@contract-pending）
+ * 契约工单：docs/architecture/issues/contracts/core-edu_contract.md#lesson-plan-calendar
+ *
+ * 关联：ARCHITECTURE.md §5.3 / §5.4 / §7.3 / §9.1 / §10 P2 / §11.3 / §11.4
+ */
+export default function LessonPlanCalendarPage(): React.ReactElement {
+  return (
+    <Suspense fallback={<DetailPageSkeleton />}>
+      <LessonPlanCalendarClient />
+    </Suspense>
+  );
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/error.tsx

@@ -0,0 +1,38 @@
+"use client";
+
+/**
+ * 教案路由错误边界（ARCHITECTURE.md §7.4 三态规范 / §11.3 DoD）。
+ * Next.js Route Segment error.tsx，捕获子树未处理异常。
+ */
+import { useEffect } from "react";
+
+import { Button } from "@/shared/components/ui/button";
+import { useTranslations } from "next-intl";
+
+export default function LessonPlansError({
+  error,
+  reset,
+}: {
+  error: Error & { digest?: string };
+  reset: () => void;
+}): React.ReactElement {
+  const t = useTranslations("lessonPlans");
+
+  useEffect(() => {
+    console.error("[portal-shell] lesson-plans route error:", error);
+  }, [error]);
+
+  return (
+    <div className="flex flex-col items-center justify-center gap-4 rounded-xl border border-destructive/30 bg-destructive/5 p-10">
+      <h2 className="text-lg font-semibold text-destructive">
+        {t("error.title")}
+      </h2>
+      <p className="text-sm text-muted-foreground">
+        {error.message || t("error.unknown")}
+      </p>
+      <Button onClick={reset} variant="outline">
+        {t("error.retry")}
+      </Button>
+    </div>
+  );
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/heatmap/page.tsx

@@ -0,0 +1,22 @@
+import { Suspense } from "react";
+
+import { LessonPlanHeatmapClient } from "@/features/teacher/lesson-plans/lesson-plan-heatmap-client";
+import { DetailPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 教案热力图视图页（ARCHITECTURE.md §7.3 详情页 / §9.1 / §10 P2）
+ *
+ * Server Component 入口：仅负责 Suspense 边界包裹（useSearchParams 要求）。
+ *
+ * 数据契约：查询 lessonPlanHeatmap(startDate, endDate) ❌ schema 无此字段 → MSW 兜底（@contract-pending）
+ * 契约工单：docs/architecture/issues/contracts/core-edu_contract.md#lesson-plan-heatmap
+ *
+ * 关联：ARCHITECTURE.md §5.3 / §5.4 / §7.3 / §9.1 / §10 P2 / §11.3 / §11.4
+ */
+export default function LessonPlanHeatmapPage(): React.ReactElement {
+  return (
+    <Suspense fallback={<DetailPageSkeleton />}>
+      <LessonPlanHeatmapClient />
+    </Suspense>
+  );
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/library/page.tsx

@@ -0,0 +1,22 @@
+import { Suspense } from "react";
+
+import { LessonPlanLibraryClient } from "@/features/teacher/lesson-plans/lesson-plan-library-client";
+import { ListPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 教案库列表页（ARCHITECTURE.md §7.3 列表页 / §9.1 / §10 P2）
+ *
+ * Server Component 入口：仅负责 Suspense 边界包裹（useSearchParams 要求）。
+ *
+ * 数据契约：查询 lessonPlanLibrary(subjectId, grade) ❌ schema 无此字段 → MSW 兜底（@contract-pending）
+ * 契约工单：docs/architecture/issues/contracts/core-edu_contract.md#lesson-plan-library
+ *
+ * 关联：ARCHITECTURE.md §5.3 / §5.4 / §7.3 / §9.1 / §10 P2 / §11.3 / §11.4
+ */
+export default function LessonPlanLibraryPage(): React.ReactElement {
+  return (
+    <Suspense fallback={<ListPageSkeleton rows={5} />}>
+      <LessonPlanLibraryClient />
+    </Suspense>
+  );
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/loading.tsx

@@ -0,0 +1,12 @@
+import { ListPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 教案路由段加载骨架（ARCHITECTURE.md §7.4 三态规范 / §11.3 DoD）。
+ * Next.js Route Segment loading.tsx，自动包裹页面渲染期间。
+ *
+ * 子页面（新建/教案库/日历/热力图/编辑）的 Skeleton 由各自 server page 的 <Suspense> 兜底，
+ * 本文件仅在 /shell/teacher/lesson-plans 列表/重定向期间显示。
+ */
+export default function LessonPlansLoading(): React.ReactElement {
+  return <ListPageSkeleton rows={5} />;
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/new/page.tsx

@@ -0,0 +1,22 @@
+import { Suspense } from "react";
+
+import { NewLessonPlanClient } from "@/features/teacher/lesson-plans/new-lesson-plan-client";
+import { FormPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 新建教案表单页（ARCHITECTURE.md §7.3 表单页 / §9.1 / §10 P2）
+ *
+ * Server Component 入口：仅负责 Suspense 边界包裹。
+ *
+ * 数据契约：mutation createLessonPlan(input) ❌ schema 无 Mutation 类型 → MSW 兜底（@contract-pending）
+ * 契约工单：docs/architecture/issues/contracts/core-edu_contract.md#create-lesson-plan
+ *
+ * 关联：ARCHITECTURE.md §5.3 / §5.4 / §7.3 / §9.1 / §10 P2 / §11.3 / §11.4
+ */
+export default function NewLessonPlanPage(): React.ReactElement {
+  return (
+    <Suspense fallback={<FormPageSkeleton />}>
+      <NewLessonPlanClient />
+    </Suspense>
+  );
+}

apps/portal-shell/src/app/shell/teacher/lesson-plans/page.tsx

@@ -0,0 +1,23 @@
+import { Suspense } from "react";
+
+import { LessonPlanListClient } from "@/features/teacher/lesson-plans/lesson-plan-list-client";
+import { ListPageSkeleton } from "@/shared/components/page-templates";
+
+/**
+ * 教案管理列表页（ARCHITECTURE.md §7.3 列表页 / §9.1 / §10 P2）
+ *
+ * Server Component 入口：仅负责 Suspense 边界包裹（useSearchParams 要求）。
+ * 业务逻辑在 LessonPlanListClient（client component）中。
+ *
+ * 数据契约：列表查询 lessonPlans(gradeId, subjectId, status) ❌ schema 无此字段 → MSW 兜底（@contract-pending）
+ * 契约工单：docs/architecture/issues/contracts/core-edu_contract.md#lesson-plans-list
+ *
+ * 关联：ARCHITECTURE.md §5.3 / §5.4 / §7.3 / §9.1 / §10 P2 / §11.3 / §11.4
+ */
+export default function LessonPlansListPage(): React.ReactElement {
+  return (
+    <Suspense fallback={<ListPageSkeleton rows={5} />}>
+      <LessonPlanListClient />
+    </Suspense>
+  );
+}