feat(lesson-preparation): add AI evaluation, analytics, attachments, calendar, comments, review, substitutes, formative, and version diff

- Add actions-ai-evaluation, actions-analytics, actions-attachments, actions-calendar, actions-comments, actions-formative, actions-questions, actions-review, actions-substitutes

- Add corresponding data-access layers for each new action module

- Add calendar-view, curriculum-map-view, version-diff-viewer components

- Add editor-slice, selection-slice, version-slice hooks for state management

- Add document-diff and scope-check lib utilities

- Add default-question-service and external-questions-bridge services

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

@@ -18,7 +18,6 @@ import {
 } 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";
 
 /**
@@ -28,7 +27,10 @@ import type { LessonPlanDataService } from "../providers/lesson-plan-provider";
  *
  * V3 扩展：新增 picker/dialog 组件所需方法（createLessonPlan / getTextbooksForPicker /
  * getChaptersForPicker / getLessonPlanTemplates / getKnowledgePointOptions /
- * publishLessonPlanHomework / getQuestions）。
+ * publishLessonPlanHomework）。
+ *
+ * V4 P0-4 修复：移除 `getQuestions` 方法及其对 `@/modules/questions/actions` 的直接 import，
+ * 改由独立的 `QuestionService`（见 default-question-service.ts）注入。
  */
 export function createDefaultDataService(): LessonPlanDataService {
   return {
@@ -146,20 +148,5 @@ export function createDefaultDataService(): LessonPlanDataService {
       }
       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 };
-    },
   };
 }