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/data-access-templates.ts

@@ -7,23 +7,16 @@ import { db } from "@/shared/db";
 import { lessonPlanTemplates, lessonPlans } from "@/shared/db/schema";
 import { SYSTEM_TEMPLATES } from "./constants";
 import { normalizeDocument, LessonPlanDataError } from "./data-access";
+import {
+  normalizeTemplateBlocks,
+  isTemplateType,
+  isTemplateScope,
+} from "./lib/type-guards";
 import type {
   LessonPlanTemplate,
   TemplateBlockSkeleton,
-  TemplateType,
-  TemplateScope,
 } from "./types";
 
-// ---- 类型守卫：安全地将 DB string 收窄为联合类型 ----
-const TEMPLATE_TYPES = ["system", "personal"] as const;
-function isTemplateType(v: string): v is TemplateType {
-  return (TEMPLATE_TYPES as readonly string[]).includes(v);
-}
-const TEMPLATE_SCOPES = ["regular", "review", "experiment", "inquiry", "blank", "custom"] as const;
-function isTemplateScope(v: string): v is TemplateScope {
-  return (TEMPLATE_SCOPES as readonly string[]).includes(v);
-}
-
 // ---- 类型映射：Drizzle 行 → LessonPlanTemplate（Date → ISO string）----
 function mapRowToTemplate(row: {
   id: string;
@@ -40,8 +33,8 @@ function mapRowToTemplate(row: {
     name: row.name,
     type: isTemplateType(row.type) ? row.type : "personal",
     scope: isTemplateScope(row.scope) ? row.scope : "custom",
-    // 从 unknown 转换为 TemplateBlockSkeleton[]（DB JSON 字段）
-    blocks: row.blocks as LessonPlanTemplate["blocks"],
+    // P1 修复：使用 normalizeTemplateBlocks 安全转换 DB JSON 字段，替代 as 断言
+    blocks: normalizeTemplateBlocks(row.blocks),
     creatorId: row.creatorId,
     createdAt: row.createdAt.toISOString(),
     updatedAt: row.updatedAt.toISOString(),