feat: expand admin and instructor tools

services/api.ts

@@ -18,6 +18,12 @@ export interface ManagedUser {
   isActive: boolean;
   createdAt: string;
 }
+export interface ManagedUserDetail extends ManagedUser {
+  completedLessons: number;
+  lastLearningAt: string | null;
+}
+export interface PlatformAnalytics { totalUsers: number; activeUsers: number; publishedCourses: number; completedLessons: number; comments: number; }
+export interface InstructorAnalytics { courses: number; lessons: number; learners: number; completedLessons: number; comments: number; }
 
 interface Session {
   token: string;
@@ -75,9 +81,16 @@ export const authApi = {
   async me() {
     return apiRequest<{ user: ApiUser }>('/auth/me');
   },
+  async acceptInvitation(token: string, name: string, password: string) {
+    return apiRequest<Session>('/auth/accept-invitation', { method: 'POST', body: JSON.stringify({ token, name, password }) });
+  },
+  async resetPassword(token: string, password: string) {
+    return apiRequest<void>('/auth/reset-password', { method: 'POST', body: JSON.stringify({ token, password }) });
+  },
 };
 
 export const adminApi = {
+  async dashboard() { return apiRequest<{ data: PlatformAnalytics }>('/admin/dashboard'); },
   async listUsers() {
     return apiRequest<{ data: ManagedUser[] }>('/admin/users');
   },
@@ -87,4 +100,15 @@ export const adminApi = {
       body: JSON.stringify(update),
     });
   },
+  async invite(email: string, role: 'student' | 'instructor') {
+    return apiRequest<{ data: { inviteUrl: string } }>('/admin/invitations', { method: 'POST', body: JSON.stringify({ email, role }) });
+  },
+  async passwordReset(userId: string) {
+    return apiRequest<{ data: { resetUrl: string } }>(`/admin/users/${userId}/password-reset`, { method: 'POST' });
+  },
+  async userDetail(userId: string) { return apiRequest<{ data: ManagedUserDetail }>(`/admin/users/${userId}`); },
+};
+
+export const instructorApi = {
+  async analytics() { return apiRequest<{ data: InstructorAnalytics }>('/manage/courses/analytics'); },
 };

services/db.ts

@@ -101,6 +101,7 @@ const toCoursePayload = (course: Course) => ({
   status: 'published' as const,
   assets: (course.attachments || []).filter((attachment) => attachment.url && attachment.url !== '#').map(toAssetPayload),
   lessons: course.lessons.map((lesson) => ({
+    id: /^[0-9a-f]{8}-[0-9a-f-]{27}$/i.test(lesson.id) ? lesson.id : undefined,
     title: lesson.title,
     description: lesson.description || '',
     durationSeconds: toSeconds(lesson.duration),
@@ -182,6 +183,14 @@ export const saveComment = async (comment: Pick<Comment, 'courseId' | 'lessonId'
   return toComment(response.data);
 };
 
+export const replyToComment = async (commentId: string, text: string): Promise<void> => {
+  await apiRequest(`/comments/${commentId}/reply`, { method: 'PUT', body: JSON.stringify({ text }) });
+};
+
+export const moderateComment = async (commentId: string): Promise<void> => {
+  await apiRequest(`/comments/${commentId}`, { method: 'DELETE' });
+};
+
 export const getCompletedLessonIds = async (courseId: string): Promise<string[]> => {
   const response = await apiRequest<{ data: Array<{ lessonId: string; completedAt: string | null }> }>(`/courses/${courseId}/progress`);
   return response.data.filter((progress) => progress.completedAt).map((progress) => progress.lessonId);