feat(lesson-preparation): add anchor canvas design, new blocks, and textbook content node

- Add anchor injector for canvas-based anchor positioning

- Add new block components: blackboard, homework, import, key-point, new-teaching, objective, summary

- Add textbook content node for React Flow canvas

- Update actions (kp, publish, main), data-access (templates, versions, main)

- Update editor, node-editor, block-renderer, and picker components

- Update schema, types, hooks, and lib utilities (document-migration, node-summary, rf-mappers)

src/modules/lesson-preparation/schema.ts

@@ -12,7 +12,8 @@ export const createLessonPlanSchema = z.object({
 export const updateLessonPlanContentSchema = z.object({
   planId: z.string().min(1),
   title: z.string().min(1).max(255).optional(),
-  content: z.unknown(), // Block 文档结构由 types 守卫，运行时只校验存在
+  // Block 文档结构由 types 守卫，运行时只校验是对象
+  content: z.record(z.string(), z.unknown()),
 });
 
 export const saveVersionSchema = z.object({
@@ -30,5 +31,32 @@ export const saveAsTemplateSchema = z.object({
   name: z.string().min(1).max(100),
 });
 
+// AI 知识点推荐输入校验
+export const suggestKnowledgePointsSchema = z.object({
+  doc: z.record(z.string(), z.unknown()),
+  textbookId: z.string().optional(),
+  chapterId: z.string().optional(),
+});
+
+// 知识点选项查询输入校验
+export const getKnowledgePointOptionsSchema = z.object({
+  textbookId: z.string().optional(),
+  chapterId: z.string().optional(),
+});
+
+// 发布作业输入校验
+const dateStringSchema = z
+  .string()
+  .refine((v) => !Number.isNaN(new Date(v).getTime()), "Invalid date format");
+
+export const publishLessonPlanHomeworkSchema = z.object({
+  planId: z.string().min(1),
+  blockId: z.string().min(1),
+  classIds: z.array(z.string().min(1)).min(1, "至少选择一个班级"),
+  availableAt: dateStringSchema.optional(),
+  dueAt: dateStringSchema.optional(),
+});
+
 export type CreateLessonPlanInput = z.infer<typeof createLessonPlanSchema>;
 export type UpdateLessonPlanContentInput = z.infer<typeof updateLessonPlanContentSchema>;
+export type PublishLessonPlanHomeworkInput = z.infer<typeof publishLessonPlanHomeworkSchema>;