feat(lesson-preparation): add readonly view, anchor node selector, and type guards

- Add lesson-plan-readonly-view for viewing published plans

- Add anchor-node-selector and textbook-segments for canvas anchor positioning

- Add i18n-errors and type-guards lib utilities

- Add lesson-plan-provider-setup for provider initialization

- Update actions, data-access (knowledge, versions, main), publish-service

- Update blocks (blackboard, exercise, homework, import, key-point, objective, reflection)

- Update editor, node-editor, node-edit-panel, pickers, and providers

src/modules/lesson-preparation/services/default-data-service.ts

@@ -2,17 +2,33 @@
 
 import {
   getLessonPlansAction,
+  getLessonPlanByIdAction,
+  updateLessonPlanAction,
+  saveLessonPlanVersionAction,
   getLessonPlanVersionsAction,
   revertLessonPlanVersionAction,
   duplicateLessonPlanAction,
   deleteLessonPlanAction,
+  publishLessonPlanAction,
+  unpublishLessonPlanAction,
+  createLessonPlanAction,
+  getTextbooksForPickerAction,
+  getChaptersForPickerAction,
+  getLessonPlanTemplatesAction,
 } from "../actions";
+import { getKnowledgePointOptionsAction } from "../actions-kp";
+import { publishLessonPlanHomeworkAction } from "../actions-publish";
+import { getQuestionsAction } from "@/modules/questions/actions";
 import type { LessonPlanDataService } from "../providers/lesson-plan-provider";
 
 /**
  * 默认数据服务实现：包装现有 Server Actions。
  * 通过 LessonPlanProvider 注入，组件不直接 import actions。
  * 测试时可替换为 mock 实现。
+ *
+ * V3 扩展：新增 picker/dialog 组件所需方法（createLessonPlan / getTextbooksForPicker /
+ * getChaptersForPicker / getLessonPlanTemplates / getKnowledgePointOptions /
+ * publishLessonPlanHomework / getQuestions）。
  */
 export function createDefaultDataService(): LessonPlanDataService {
   return {
@@ -24,6 +40,27 @@ export function createDefaultDataService(): LessonPlanDataService {
       return { success: false, message: res.message };
     },
 
+    async getLessonPlanById(planId) {
+      const res = await getLessonPlanByIdAction(planId);
+      if (res.success && res.data) {
+        return { success: true, data: { plan: res.data.plan } };
+      }
+      return { success: false, message: res.message };
+    },
+
+    async updateLessonPlan(input) {
+      const res = await updateLessonPlanAction(input);
+      return { success: res.success, message: res.message };
+    },
+
+    async saveLessonPlanVersion(input) {
+      const res = await saveLessonPlanVersionAction(input);
+      if (res.success && res.data) {
+        return { success: true, data: { versionNo: res.data.versionNo } };
+      }
+      return { success: false, message: res.message };
+    },
+
     async getLessonPlanVersions(planId) {
       const res = await getLessonPlanVersionsAction(planId);
       if (res.success && res.data) {
@@ -46,5 +83,83 @@ export function createDefaultDataService(): LessonPlanDataService {
       const res = await deleteLessonPlanAction(planId);
       return { success: res.success, message: res.message };
     },
+
+    async publishLessonPlan(planId) {
+      const res = await publishLessonPlanAction(planId);
+      return { success: res.success, message: res.message };
+    },
+
+    async unpublishLessonPlan(planId) {
+      const res = await unpublishLessonPlanAction(planId);
+      return { success: res.success, message: res.message };
+    },
+
+    // ---- V3 新增：picker/dialog 组件所需方法 ----
+
+    async createLessonPlan(prevState, formData) {
+      const res = await createLessonPlanAction(prevState, formData);
+      if (res.success && res.data) {
+        return { success: true, data: { planId: res.data.planId } };
+      }
+      return { success: false, message: res.message, errors: res.errors };
+    },
+
+    async getTextbooksForPicker() {
+      const res = await getTextbooksForPickerAction();
+      if (res.success && res.data) {
+        return { success: true, data: { textbooks: res.data.textbooks } };
+      }
+      return { success: false, message: res.message };
+    },
+
+    async getChaptersForPicker(textbookId) {
+      const res = await getChaptersForPickerAction(textbookId);
+      if (res.success && res.data) {
+        return { success: true, data: { chapters: res.data.chapters } };
+      }
+      return { success: false, message: res.message };
+    },
+
+    async getLessonPlanTemplates() {
+      const res = await getLessonPlanTemplatesAction();
+      if (res.success && res.data) {
+        return { success: true, data: { templates: res.data.templates } };
+      }
+      return { success: false, message: res.message };
+    },
+
+    async getKnowledgePointOptions(input) {
+      const res = await getKnowledgePointOptionsAction(input);
+      if (res.success && res.data) {
+        return { success: true, data: { options: res.data.options } };
+      }
+      return { success: false, message: res.message, errors: res.errors };
+    },
+
+    async publishLessonPlanHomework(input) {
+      const res = await publishLessonPlanHomeworkAction(input);
+      if (res.success && res.data) {
+        return {
+          success: true,
+          data: { examId: res.data.examId, assignmentId: res.data.assignmentId },
+        };
+      }
+      return { success: false, message: res.message, errors: res.errors };
+    },
+
+    async getQuestions(params) {
+      const res = await getQuestionsAction(params);
+      if (res.success && res.data) {
+        // 从 questions 模块的返回结构中提取 picker 所需字段
+        const items = res.data.data.map((q) => ({
+          id: q.id,
+          type: q.type,
+          difficulty: q.difficulty,
+          content: q.content,
+        }));
+        return { success: true, data: { data: items } };
+      }
+      return { success: false, message: res.message };
+    },
   };
 }