refactor(lesson-preparation): V2 审计深度修复 — Server Actions i18n + 错误码模式 + 类型断言清零 + a11y 深度修复 + Tracker 埋点接入

V2-1: 12 个 Server Action 通过 getTranslations 翻译错误消息；Service/DataAccess 层抛出错误码异常（PublishServiceError/LessonPlanDataError），Actions 层通过 PUBLISH_ERROR_KEY_MAP 翻译为 i18n 消息
V2-2: SYSTEM_TEMPLATES name/title 改为 i18n 键，createLessonPlan 接受 translateTitle 函数在服务端翻译后存储到 DB
V2-3: 8 处 as unknown as 断言替换为显式类型映射函数（mapRowToLessonPlan/mapRowToListItem/mapRowToTemplate/mapRowToVersion）+ 类型守卫（isLessonPlanStatus/isTemplateType/isTemplateScope）
V2-4: MiniMap nodeColor 复用 lib/node-summary.ts 的 getNodeColor
V2-5: a11y 深度修复 — lesson-plan-filters/exercise-block/inline-question-editor 的 select 添加 label htmlFor 关联；exercise-block 题目列表改为 ul/li；node-editor 画布添加 role=application + 键盘导航配置
V2-6: Tracker 埋点接入 — 新增 useLessonPlanTrackerSafe hook，在 create/save/publish/revert/duplicate/archive 6 处调用 tracker.track

同步更新架构图 004 和 005 文档

src/modules/lesson-preparation/constants.ts

@@ -36,9 +36,11 @@ export const RICH_TEXT_BLOCK_TYPES: BlockType[] = [
 ];
 
 // 系统预设模板骨架（seed 用）
+// V2-2 修复：title/hint 存储 i18n 键，由 createLessonPlan 调用 getTranslations 翻译
+// 键格式：`template.blocks.${templateId}.${blockIndex}.title` 或 `blockType.${type}`（默认）
 export interface SystemTemplateDef {
   id: string; // 固定 ID，便于幂等
-  name: string;
+  name: string; // i18n 键：template.names.${id}
   scope: TemplateScope;
   blocks: TemplateBlockSkeleton[];
 }
@@ -46,60 +48,60 @@ export interface SystemTemplateDef {
 export const SYSTEM_TEMPLATES: SystemTemplateDef[] = [
   {
     id: "tpl_regular",
-    name: "常规课",
+    name: "tpl_regular", // i18n 键
     scope: "regular",
     blocks: [
-      { type: "objective", title: "教学目标", hint: "明确本课的知识、能力、情感目标" },
-      { type: "key_point", title: "教学重难点", hint: "标注重点与难点及突破策略" },
-      { type: "import", title: "导入", hint: "情境导入/复习导入/问题导入" },
-      { type: "new_teaching", title: "新授", hint: "核心教学活动设计" },
-      { type: "consolidation", title: "巩固练习", hint: "课堂练习，检验学习效果" },
-      { type: "summary", title: "课堂小结", hint: "归纳本课要点" },
-      { type: "homework", title: "作业布置", hint: "课后作业说明（如需下发请用练习块）" },
-      { type: "blackboard", title: "板书设计", hint: "板书结构示意" },
+      { type: "objective", title: "blockType.objective" },
+      { type: "key_point", title: "blockType.key_point" },
+      { type: "import", title: "blockType.import" },
+      { type: "new_teaching", title: "blockType.new_teaching" },
+      { type: "consolidation", title: "blockType.consolidation" },
+      { type: "summary", title: "blockType.summary" },
+      { type: "homework", title: "blockType.homework" },
+      { type: "blackboard", title: "blockType.blackboard" },
     ],
   },
   {
     id: "tpl_review",
-    name: "复习课",
+    name: "tpl_review",
     scope: "review",
     blocks: [
-      { type: "objective", title: "复习目标" },
-      { type: "rich_text", title: "知识网络梳理", hint: "构建知识结构图" },
-      { type: "rich_text", title: "典型例题精讲" },
-      { type: "rich_text", title: "变式训练" },
-      { type: "exercise", title: "当堂检测", hint: "purpose 选 class_practice" },
-      { type: "summary", title: "课堂小结" },
+      { type: "objective", title: "blockType.objective" },
+      { type: "rich_text", title: "template.blocks.tpl_review.1" },
+      { type: "rich_text", title: "template.blocks.tpl_review.2" },
+      { type: "rich_text", title: "template.blocks.tpl_review.3" },
+      { type: "exercise", title: "blockType.exercise" },
+      { type: "summary", title: "blockType.summary" },
     ],
   },
   {
     id: "tpl_experiment",
-    name: "实验课",
+    name: "tpl_experiment",
     scope: "experiment",
     blocks: [
-      { type: "objective", title: "实验目的" },
-      { type: "rich_text", title: "器材准备" },
-      { type: "rich_text", title: "实验步骤" },
-      { type: "rich_text", title: "观察记录表" },
-      { type: "rich_text", title: "交流讨论" },
-      { type: "summary", title: "课堂小结" },
+      { type: "objective", title: "blockType.objective" },
+      { type: "rich_text", title: "template.blocks.tpl_experiment.1" },
+      { type: "rich_text", title: "template.blocks.tpl_experiment.2" },
+      { type: "rich_text", title: "template.blocks.tpl_experiment.3" },
+      { type: "rich_text", title: "template.blocks.tpl_experiment.4" },
+      { type: "summary", title: "blockType.summary" },
     ],
   },
   {
     id: "tpl_inquiry",
-    name: "探究课",
+    name: "tpl_inquiry",
     scope: "inquiry",
     blocks: [
-      { type: "rich_text", title: "情境导入" },
-      { type: "rich_text", title: "问题驱动" },
-      { type: "rich_text", title: "小组探究" },
-      { type: "rich_text", title: "成果展示" },
-      { type: "rich_text", title: "归纳提升" },
+      { type: "rich_text", title: "template.blocks.tpl_inquiry.0" },
+      { type: "rich_text", title: "template.blocks.tpl_inquiry.1" },
+      { type: "rich_text", title: "template.blocks.tpl_inquiry.2" },
+      { type: "rich_text", title: "template.blocks.tpl_inquiry.3" },
+      { type: "rich_text", title: "template.blocks.tpl_inquiry.4" },
     ],
   },
   {
     id: "tpl_blank",
-    name: "空白模板",
+    name: "tpl_blank",
     scope: "blank",
     blocks: [],
   },