feat(lesson-preparation): major update with AI features, schedules, and new components

- Add actions-schedules.ts and data-access-schedules.ts for schedule management

- Add AI differentiation, AI feedback, consistency check dialogs

- Add attachment-picker, curriculum-heatmap, print-view, version-diff-view

- Add lesson-plan-mobile-view and schedule-dialog components

- Add lib: ai-differentiation, ai-feedback, auto-layout, consistency-check,

  curriculum-coverage, export, version-diff

- Add history-slice hook for version history

- Update existing components, hooks, providers, services, types

- Add teacher lesson-plans heatmap and library pages

src/modules/lesson-preparation/actions-ai.ts

@@ -3,9 +3,20 @@
 import { requirePermission } from "@/shared/lib/auth-guard";
 import { handleActionError } from "@/shared/lib/action-utils";
 import { Permissions } from "@/shared/types/permissions";
+import { getKnowledgePointsByTextbookId } from "@/modules/textbooks/data-access";
 import { suggestKnowledgePoints } from "./ai-suggest";
 import { suggestKnowledgePointsSchema } from "./schema";
 import { translateFieldErrors } from "./lib/i18n-errors";
+import { generateLessonPlanFeedback, type AiFeedbackResult } from "./lib/ai-feedback";
+import {
+  generateDifferentiationSuggestions,
+  checkCurriculumAlignment,
+  generateExplainableAssessment,
+  type DifferentiationSuggestion,
+  type CurriculumCheckItem,
+  type ExplainableAssessment,
+} from "./lib/ai-differentiation";
+import type { LessonPlanDocument } from "./types";
 import type { ActionState } from "@/shared/types/action-state";
 
 export async function suggestKnowledgePointsAction(input: {
@@ -45,3 +56,99 @@ export async function suggestKnowledgePointsAction(input: {
     return handleActionError(e);
   }
 }
+
+/**
+ * V5-17 A1/A2：AI 反馈闭环。
+ * 调用 AI 对课案文档生成结构化反馈（含解释性展示）。
+ */
+export async function generateLessonPlanFeedbackAction(
+  doc: LessonPlanDocument,
+): Promise<ActionState<AiFeedbackResult>> {
+  try {
+    await Promise.all([
+      requirePermission(Permissions.LESSON_PLAN_READ),
+      requirePermission(Permissions.AI_CHAT),
+    ]);
+    const result = await generateLessonPlanFeedback(doc);
+    return { success: true, data: result };
+  } catch (e) {
+    return handleActionError(e);
+  }
+}
+
+/**
+ * V5-21 A3：AI 差异化教学建议生成。
+ * 根据课案内容生成基础/提高/拓展三个层次的教学建议。
+ */
+export async function generateDifferentiationSuggestionsAction(
+  doc: LessonPlanDocument,
+): Promise<ActionState<{ items: DifferentiationSuggestion[] }>> {
+  try {
+    await Promise.all([
+      requirePermission(Permissions.LESSON_PLAN_READ),
+      requirePermission(Permissions.AI_CHAT),
+    ]);
+    const items = await generateDifferentiationSuggestions(doc);
+    return { success: true, data: { items } };
+  } catch (e) {
+    return handleActionError(e);
+  }
+}
+
+/**
+ * V5-21 A4：AI 课标实时核对。
+ * 检查课案是否覆盖教材课标要求。
+ */
+export async function checkCurriculumAlignmentAction(
+  doc: LessonPlanDocument,
+  knowledgePoints: { id: string; name: string }[],
+): Promise<ActionState<{ items: CurriculumCheckItem[] }>> {
+  try {
+    await Promise.all([
+      requirePermission(Permissions.LESSON_PLAN_READ),
+      requirePermission(Permissions.AI_CHAT),
+    ]);
+    const items = await checkCurriculumAlignment(doc, knowledgePoints);
+    return { success: true, data: { items } };
+  } catch (e) {
+    return handleActionError(e);
+  }
+}
+
+/**
+ * V5-21 A5：AI 可解释评估。
+ * 对课案中的练习节点给出可解释的评分依据。
+ */
+export async function generateExplainableAssessmentAction(
+  doc: LessonPlanDocument,
+): Promise<ActionState<{ items: ExplainableAssessment[] }>> {
+  try {
+    await Promise.all([
+      requirePermission(Permissions.LESSON_PLAN_READ),
+      requirePermission(Permissions.AI_CHAT),
+    ]);
+    const items = await generateExplainableAssessment(doc);
+    return { success: true, data: { items } };
+  } catch (e) {
+    return handleActionError(e);
+  }
+}
+
+/**
+ * V5-21 A4 辅助：按教材 ID 获取知识点列表（仅 id + name），
+ * 供课标核对 Tab 按需加载，避免编辑页首屏负担。
+ */
+export async function getKnowledgePointsForAlignmentAction(
+  textbookId: string,
+): Promise<ActionState<{ items: { id: string; name: string }[] }>> {
+  try {
+    await requirePermission(Permissions.LESSON_PLAN_READ);
+    const kps = await getKnowledgePointsByTextbookId(textbookId);
+    return {
+      success: true,
+      data: { items: kps.map((kp) => ({ id: kp.id, name: kp.name })) },
+    };
+  } catch (e) {
+    return handleActionError(e);
+  }
+}