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/config/block-registry.tsx

@@ -1,3 +1,5 @@
+"use client";
+
 import type { ReactElement } from "react";
 import type {
   BlockData,
@@ -47,10 +49,9 @@ export interface BlockRegistryEntry {
   isRichText?: boolean;
 }
 
-const RICH_TEXT_TYPES: BlockType[] = ["rich_text", "consolidation"];
-
 /**
- * Block 注册表元数据（用于查询 isRichText 等属性）。
+ * Block 注册表元数据（单一数据源，P0-9 修复）。
+ * isRichText 属性是判断富文本 block 的唯一权威来源。
  * 组件渲染由 BlockRenderer 统一处理，避免在 render 中动态获取组件引用。
  */
 export const BLOCK_REGISTRY: Record<BlockType, BlockRegistryEntry> = {
@@ -68,8 +69,13 @@ export const BLOCK_REGISTRY: Record<BlockType, BlockRegistryEntry> = {
   reflection: {},
 };
 
+/**
+ * 判断某 BlockType 是否为富文本类。
+ * P0-9 修复：统一以 BLOCK_REGISTRY.isRichText 为唯一数据源，
+ * 删除 constants.ts 中的 RICH_TEXT_BLOCK_TYPES 和此处的 RICH_TEXT_TYPES 冗余定义。
+ */
 export function isRichTextBlock(type: BlockType): boolean {
-  return RICH_TEXT_TYPES.includes(type);
+  return BLOCK_REGISTRY[type]?.isRichText === true;
 }
 
 /**