feat: Implement Compliance Academy E-Learning module (Phases 1-7)

Add complete Academy backend (Go) and frontend (Next.js) for DSGVO/IT-Security/AI-Literacy compliance training:
- Go backend: Course CRUD, enrollments, quiz evaluation, PDF certificates (gofpdf), video generation pipeline (ElevenLabs + HeyGen)
- In-memory data store with PostgreSQL migration for future DB support
- Frontend: Course creation (AI + manual), lesson viewer, interactive quiz, certificate viewer with PDF download
- Fix existing compile errors in generate.go (SearchResult type mismatch), llm/service.go (unused var), rag/service.go (Unicode chars)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-v2/lib/sdk/academy/api.ts

@@ -19,6 +19,9 @@ import {
   AcademyStatistics,
   SubmitQuizRequest,
   SubmitQuizResponse,
+  GenerateCourseRequest,
+  GenerateCourseResponse,
+  VideoStatus,
   isEnrollmentOverdue
 } from './types'
 
@@ -273,6 +276,90 @@ export async function fetchAcademyStatistics(): Promise<AcademyStatistics> {
   )
 }
 
+// =============================================================================
+// AI GENERATION
+// =============================================================================
+
+/**
+ * KI-generiert einen kompletten Kurs
+ */
+export async function generateCourse(request: GenerateCourseRequest): Promise<GenerateCourseResponse> {
+  return fetchWithTimeout<GenerateCourseResponse>(
+    `${ACADEMY_API_BASE}/api/v1/academy/courses/generate`,
+    {
+      method: 'POST',
+      body: JSON.stringify(request)
+    }
+  )
+}
+
+/**
+ * Einzelne Lektion neu generieren
+ */
+export async function regenerateLesson(lessonId: string): Promise<{ lessonId: string; status: string }> {
+  return fetchWithTimeout<{ lessonId: string; status: string }>(
+    `${ACADEMY_API_BASE}/api/v1/academy/lessons/${lessonId}/regenerate`,
+    {
+      method: 'POST'
+    }
+  )
+}
+
+// =============================================================================
+// VIDEO GENERATION
+// =============================================================================
+
+/**
+ * Videos fuer alle Lektionen eines Kurses generieren
+ */
+export async function generateVideos(courseId: string): Promise<VideoStatus> {
+  return fetchWithTimeout<VideoStatus>(
+    `${ACADEMY_API_BASE}/api/v1/academy/courses/${courseId}/generate-videos`,
+    {
+      method: 'POST'
+    }
+  )
+}
+
+/**
+ * Video-Generierungs-Status abrufen
+ */
+export async function getVideoStatus(courseId: string): Promise<VideoStatus> {
+  return fetchWithTimeout<VideoStatus>(
+    `${ACADEMY_API_BASE}/api/v1/academy/courses/${courseId}/video-status`
+  )
+}
+
+// =============================================================================
+// CERTIFICATES (Extended)
+// =============================================================================
+
+/**
+ * Zertifikat als PDF herunterladen
+ */
+export async function downloadCertificatePDF(certificateId: string): Promise<Blob> {
+  const controller = new AbortController()
+  const timeoutId = setTimeout(() => controller.abort(), API_TIMEOUT)
+
+  try {
+    const response = await fetch(
+      `${ACADEMY_API_BASE}/api/v1/academy/certificates/${certificateId}/pdf`,
+      {
+        signal: controller.signal,
+        headers: getAuthHeaders()
+      }
+    )
+
+    if (!response.ok) {
+      throw new Error(`HTTP ${response.status}`)
+    }
+
+    return response.blob()
+  } finally {
+    clearTimeout(timeoutId)
+  }
+}
+
 // =============================================================================
 // SDK PROXY FUNCTION (wraps fetchCourses + fetchAcademyStatistics)
 // =============================================================================

admin-v2/lib/sdk/academy/types.ts

@@ -240,6 +240,39 @@ export interface SubmitQuizResponse {
   results: { questionId: string; correct: boolean; explanation: string }[]
 }
 
+// =============================================================================
+// AI GENERATION TYPES
+// =============================================================================
+
+export interface GenerateCourseRequest {
+  tenantId: string
+  topic: string
+  category: CourseCategory
+  targetGroup?: string
+  language?: string
+  useRag?: boolean
+  ragQuery?: string
+}
+
+export interface GenerateCourseResponse {
+  course: Course
+  ragSources?: { id: string; content: string; source: string; score: number }[]
+  model: string
+}
+
+export interface VideoStatus {
+  courseId: string
+  status: 'not_started' | 'pending' | 'processing' | 'completed' | 'failed'
+  lessons: LessonVideoStatus[]
+}
+
+export interface LessonVideoStatus {
+  lessonId: string
+  status: string
+  videoUrl?: string
+  audioUrl?: string
+}
+
 // =============================================================================
 // HELPER FUNCTIONS
 // =============================================================================