feat: 实现成长路径功能

- 新增数据库表: growth_path_nodes, user_growth_path_progress, user_node_completions
- 新增 Model: GrowthPathNode, UserGrowthPathProgress, UserNodeCompletion
- 新增 Service: GrowthPathService（管理端CRUD、学员端进度追踪）
- 新增 API: 学员端获取成长路径、管理端CRUD
- 前端学员端从API动态加载成长路径数据
- 更新管理端API接口定义

frontend/src/api/manager/index.ts

@@ -102,28 +102,97 @@ export interface CourseDetailForManager extends CourseInfo {
   }>
 }
 
-// 成长路径配置
-export interface GrowthPathConfig {
+// 成长路径节点
+export interface GrowthPathNode {
   id: number
-  positionId: number
-  positionName: string
+  growth_path_id: number
+  course_id: number
+  course_name?: string
+  stage_name?: string
+  title: string
+  description?: string
+  order_num: number
+  is_required: boolean
+  prerequisites?: number[]
+  estimated_days: number
+  created_at: string
+  updated_at: string
+}
+
+// 阶段配置
+export interface StageConfig {
   name: string
   description?: string
-  courses: Array<{
-    courseId: number
-    courseName: string
-    isRequired: boolean
-    prerequisites: number[]
-    order: number
-    estimatedDays: number
-  }>
-  totalCourses: number
-  requiredCourses: number
-  optionalCourses: number
-  estimatedDays: number
-  status: 'active' | 'inactive'
-  createdAt: string
-  updatedAt: string
+  order: number
+}
+
+// 成长路径配置（新版）
+export interface GrowthPathConfig {
+  id: number
+  name: string
+  description?: string
+  target_role?: string
+  position_id?: number
+  position_name?: string
+  stages?: StageConfig[]
+  estimated_duration_days?: number
+  is_active: boolean
+  sort_order: number
+  nodes: GrowthPathNode[]
+  node_count: number
+  created_at: string
+  updated_at: string
+}
+
+// 成长路径列表项
+export interface GrowthPathListItem {
+  id: number
+  name: string
+  description?: string
+  position_id?: number
+  position_name?: string
+  is_active: boolean
+  node_count: number
+  estimated_duration_days?: number
+  created_at: string
+}
+
+// 创建节点请求
+export interface CreateGrowthPathNode {
+  course_id: number
+  stage_name?: string
+  title: string
+  description?: string
+  order_num: number
+  is_required: boolean
+  prerequisites?: number[]
+  estimated_days: number
+}
+
+// 创建成长路径请求
+export interface CreateGrowthPathRequest {
+  name: string
+  description?: string
+  target_role?: string
+  position_id?: number
+  stages?: StageConfig[]
+  estimated_duration_days?: number
+  is_active?: boolean
+  sort_order?: number
+  nodes?: CreateGrowthPathNode[]
+}
+
+// 更新成长路径请求
+export interface UpdateGrowthPathRequest {
+  name?: string
+  description?: string
+  target_role?: string
+  position_id?: number
+  stages?: StageConfig[]
+  estimated_duration_days?: number
+  is_active?: boolean
+  sort_order?: number
+  nodes?: CreateGrowthPathNode[]
 }
 
 // AI陪练场景（管理视图）
@@ -364,49 +433,44 @@ export const analyzeKnowledgePoints = (courseId: number) => {
  */
 export const getGrowthPathConfigs = (params: {
   page?: number
-  size?: number
-  positionId?: number
-  status?: string
+  page_size?: number
+  position_id?: number
+  is_active?: boolean
 } = {}) => {
   return request.get<{
-    items: GrowthPathConfig[]
+    items: GrowthPathListItem[]
     total: number
     page: number
-    size: number
+    page_size: number
   }>('/api/v1/manager/growth-paths', { params })
 }
 
+/**
+ * 获取成长路径详情
+ */
+export const getGrowthPathDetail = (pathId: number) => {
+  return request.get<GrowthPathConfig>(`/api/v1/manager/growth-paths/${pathId}`)
+}
+
 /**
  * 创建成长路径
  */
-export const createGrowthPath = (data: {
-  positionId: number
-  name: string
-  description?: string
-  courses: Array<{
-    courseId: number
-    isRequired: boolean
-    prerequisites?: number[]
-    estimatedDays?: number
-  }>
-}) => {
-  return request.post<GrowthPathConfig>('/api/v1/manager/growth-paths', data)
+export const createGrowthPath = (data: CreateGrowthPathRequest) => {
+  return request.post<{ success: boolean; message: string; id: number }>('/api/v1/manager/growth-paths', data)
 }
 
 /**
  * 更新成长路径
  */
-export const updateGrowthPath = (pathId: number, data: {
-  name?: string
-  description?: string
-  courses?: Array<{
-    courseId: number
-    isRequired: boolean
-    prerequisites?: number[]
-    estimatedDays?: number
-  }>
-}) => {
-  return request.put<GrowthPathConfig>(`/api/v1/manager/growth-paths/${pathId}`, data)
+export const updateGrowthPath = (pathId: number, data: UpdateGrowthPathRequest) => {
+  return request.put<{ success: boolean; message: string }>(`/api/v1/manager/growth-paths/${pathId}`, data)
+}
+
+/**
+ * 删除成长路径
+ */
+export const deleteGrowthPath = (pathId: number) => {
+  return request.delete<{ success: boolean; message: string }>(`/api/v1/manager/growth-paths/${pathId}`)
 }
 
 /**

frontend/src/api/trainee/index.ts

@@ -40,7 +40,48 @@ export interface CourseMaterial {
   createdAt: string
 }
 
-// 成长路径节点
+// 成长路径节点（学员端）
+export interface TraineeGrowthPathNode {
+  id: number
+  course_id: number
+  title: string
+  description?: string
+  stage_name?: string
+  is_required: boolean
+  estimated_days: number
+  order_num: number
+  status: 'locked' | 'unlocked' | 'in_progress' | 'completed'
+  progress: number
+  course_name?: string
+  course_cover?: string
+}
+
+// 成长路径阶段
+export interface TraineeGrowthPathStage {
+  name: string
+  description?: string
+  completed: number
+  total: number
+  nodes: TraineeGrowthPathNode[]
+}
+
+// 成长路径（学员端响应）
+export interface TraineeGrowthPath {
+  id: number
+  name: string
+  description?: string
+  position_id?: number
+  position_name?: string
+  total_progress: number
+  completed_nodes: number
+  total_nodes: number
+  status: 'not_started' | 'in_progress' | 'completed'
+  started_at?: string
+  estimated_completion_days?: number
+  stages: TraineeGrowthPathStage[]
+}
+
+// 兼容旧接口
 export interface GrowthPathNode {
   id: number
   courseId: number
@@ -54,7 +95,7 @@ export interface GrowthPathNode {
   order: number
 }
 
-// 成长路径
+// 兼容旧接口
 export interface GrowthPath {
   id: number
   name: string
@@ -226,10 +267,35 @@ export const markMaterialCompleted = (materialId: number) => {
 }
 
 /**
- * 获取成长路径
+ * 获取成长路径（学员端）
  */
-export const getGrowthPath = () => {
-  return request.get<GrowthPath>('/api/v1/trainee/growth-path')
+export const getGrowthPath = (positionId?: number) => {
+  return request.get<TraineeGrowthPath>('/api/v1/trainee/growth-path', {
+    params: positionId ? { position_id: positionId } : {}
+  })
+}
+
+/**
+ * 开始学习成长路径
+ */
+export const startGrowthPath = (growthPathId: number) => {
+  return request.post<{ success: boolean; message: string; progress_id: number }>('/api/v1/trainee/growth-path/start', {
+    growth_path_id: growthPathId
+  })
+}
+
+/**
+ * 完成成长路径节点
+ */
+export const completeGrowthPathNode = (nodeId: number) => {
+  return request.post<{
+    completed: boolean
+    total_progress: number
+    is_path_completed: boolean
+    unlocked_nodes: number[]
+  }>('/api/v1/trainee/growth-path/node/complete', {
+    node_id: nodeId
+  })
 }
 
 /**