feat(training): add Media Pipeline — TTS Audio, Presentation Video, Bulk Generation

Phase A: 8 new IT-Security training modules (SEC-PWD, SEC-DESK, SEC-KIAI,
SEC-BYOD, SEC-VIDEO, SEC-USB, SEC-INC, SEC-HOME) with CTM entries.
Bulk content and quiz generation endpoints for all 28 modules.

Phase B: Piper TTS service (Python/FastAPI) for local German speech synthesis.
training_media table, TTSClient in Go backend, audio generation endpoints,
AudioPlayer component in frontend. MinIO storage integration.

Phase C: FFmpeg presentation video pipeline — LLM generates slide scripts,
ImageMagick renders 1920x1080 slides, FFmpeg combines with audio to MP4.
VideoPlayer and ScriptPreview components in frontend.

New files: 15 created, 9 modified
- compliance-tts-service/ (Dockerfile, main.py, tts_engine.py, storage.py,
  slide_renderer.py, video_generator.py)
- migrations 014-016 (training engine, IT-security modules, media table)
- training package (models, store, content_generator, media, handlers)
- frontend (AudioPlayer, VideoPlayer, ScriptPreview, api, types, page)

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

admin-compliance/lib/sdk/training/api.ts

@@ -0,0 +1,311 @@
+/**
+ * Training Engine API Client
+ * Communicates with the Go backend via Next.js API proxy at /api/sdk/v1/training/*
+ */
+
+import type {
+  ModuleListResponse,
+  AssignmentListResponse,
+  MatrixResponse,
+  AuditLogResponse,
+  EscalationResponse,
+  DeadlineListResponse,
+  TrainingModule,
+  TrainingAssignment,
+  ModuleContent,
+  QuizQuestion,
+  QuizAttempt,
+  QuizSubmitResponse,
+  TrainingStats,
+  TrainingMedia,
+} from './types'
+
+const BASE_URL = '/api/sdk/v1/training'
+
+async function apiFetch<T>(path: string, options?: RequestInit): Promise<T> {
+  const res = await fetch(`${BASE_URL}${path}`, {
+    ...options,
+    headers: {
+      'Content-Type': 'application/json',
+      'X-Tenant-ID': typeof window !== 'undefined'
+        ? (localStorage.getItem('bp-tenant-id') || 'default')
+        : 'default',
+      ...options?.headers,
+    },
+  })
+
+  if (!res.ok) {
+    const error = await res.json().catch(() => ({ error: res.statusText }))
+    throw new Error(error.error || `API Error: ${res.status}`)
+  }
+
+  return res.json()
+}
+
+// =============================================================================
+// MODULES
+// =============================================================================
+
+export async function getModules(filters?: {
+  regulation_area?: string
+  frequency_type?: string
+  search?: string
+}): Promise<ModuleListResponse> {
+  const params = new URLSearchParams()
+  if (filters?.regulation_area) params.set('regulation_area', filters.regulation_area)
+  if (filters?.frequency_type) params.set('frequency_type', filters.frequency_type)
+  if (filters?.search) params.set('search', filters.search)
+  const qs = params.toString()
+  return apiFetch<ModuleListResponse>(`/modules${qs ? `?${qs}` : ''}`)
+}
+
+export async function getModule(id: string): Promise<{
+  module: TrainingModule
+  content: ModuleContent | null
+  questions: QuizQuestion[]
+}> {
+  return apiFetch(`/modules/${id}`)
+}
+
+export async function createModule(data: {
+  module_code: string
+  title: string
+  description?: string
+  regulation_area: string
+  frequency_type: string
+  duration_minutes?: number
+  pass_threshold?: number
+}): Promise<TrainingModule> {
+  return apiFetch<TrainingModule>('/modules', {
+    method: 'POST',
+    body: JSON.stringify(data),
+  })
+}
+
+export async function updateModule(id: string, data: Record<string, unknown>): Promise<TrainingModule> {
+  return apiFetch<TrainingModule>(`/modules/${id}`, {
+    method: 'PUT',
+    body: JSON.stringify(data),
+  })
+}
+
+// =============================================================================
+// MATRIX
+// =============================================================================
+
+export async function getMatrix(): Promise<MatrixResponse> {
+  return apiFetch<MatrixResponse>('/matrix')
+}
+
+export async function getMatrixForRole(role: string): Promise<{
+  role: string
+  label: string
+  entries: Array<{ module_id: string; module_code: string; module_title: string; is_mandatory: boolean; priority: number }>
+  total: number
+}> {
+  return apiFetch(`/matrix/${role}`)
+}
+
+export async function setMatrixEntry(data: {
+  role_code: string
+  module_id: string
+  is_mandatory: boolean
+  priority: number
+}): Promise<unknown> {
+  return apiFetch('/matrix', {
+    method: 'POST',
+    body: JSON.stringify(data),
+  })
+}
+
+export async function deleteMatrixEntry(role: string, moduleId: string): Promise<unknown> {
+  return apiFetch(`/matrix/${role}/${moduleId}`, { method: 'DELETE' })
+}
+
+// =============================================================================
+// ASSIGNMENTS
+// =============================================================================
+
+export async function computeAssignments(data: {
+  user_id: string
+  user_name: string
+  user_email: string
+  roles: string[]
+  trigger?: string
+}): Promise<{ assignments: TrainingAssignment[]; created: number }> {
+  return apiFetch('/assignments/compute', {
+    method: 'POST',
+    body: JSON.stringify(data),
+  })
+}
+
+export async function getAssignments(filters?: {
+  user_id?: string
+  module_id?: string
+  role?: string
+  status?: string
+  limit?: number
+  offset?: number
+}): Promise<AssignmentListResponse> {
+  const params = new URLSearchParams()
+  if (filters?.user_id) params.set('user_id', filters.user_id)
+  if (filters?.module_id) params.set('module_id', filters.module_id)
+  if (filters?.role) params.set('role', filters.role)
+  if (filters?.status) params.set('status', filters.status)
+  if (filters?.limit) params.set('limit', String(filters.limit))
+  if (filters?.offset) params.set('offset', String(filters.offset))
+  const qs = params.toString()
+  return apiFetch<AssignmentListResponse>(`/assignments${qs ? `?${qs}` : ''}`)
+}
+
+export async function getAssignment(id: string): Promise<TrainingAssignment> {
+  return apiFetch<TrainingAssignment>(`/assignments/${id}`)
+}
+
+export async function startAssignment(id: string): Promise<{ status: string }> {
+  return apiFetch(`/assignments/${id}/start`, { method: 'POST' })
+}
+
+export async function updateAssignmentProgress(id: string, progress: number): Promise<{ status: string; progress: number }> {
+  return apiFetch(`/assignments/${id}/progress`, {
+    method: 'POST',
+    body: JSON.stringify({ progress }),
+  })
+}
+
+export async function completeAssignment(id: string): Promise<{ status: string }> {
+  return apiFetch(`/assignments/${id}/complete`, { method: 'POST' })
+}
+
+// =============================================================================
+// QUIZ
+// =============================================================================
+
+export async function getQuiz(moduleId: string): Promise<{ questions: QuizQuestion[]; total: number }> {
+  return apiFetch(`/quiz/${moduleId}`)
+}
+
+export async function submitQuiz(moduleId: string, data: {
+  assignment_id: string
+  answers: Array<{ question_id: string; selected_index: number }>
+  duration_seconds?: number
+}): Promise<QuizSubmitResponse> {
+  return apiFetch<QuizSubmitResponse>(`/quiz/${moduleId}/submit`, {
+    method: 'POST',
+    body: JSON.stringify(data),
+  })
+}
+
+export async function getQuizAttempts(assignmentId: string): Promise<{ attempts: QuizAttempt[]; total: number }> {
+  return apiFetch(`/quiz/attempts/${assignmentId}`)
+}
+
+// =============================================================================
+// CONTENT GENERATION
+// =============================================================================
+
+export async function generateContent(moduleId: string, language?: string): Promise<ModuleContent> {
+  return apiFetch<ModuleContent>('/content/generate', {
+    method: 'POST',
+    body: JSON.stringify({ module_id: moduleId, language: language || 'de' }),
+  })
+}
+
+export async function generateQuiz(moduleId: string, count?: number): Promise<{ questions: QuizQuestion[]; total: number }> {
+  return apiFetch('/content/generate-quiz', {
+    method: 'POST',
+    body: JSON.stringify({ module_id: moduleId, count: count || 5 }),
+  })
+}
+
+export async function getContent(moduleId: string): Promise<ModuleContent> {
+  return apiFetch<ModuleContent>(`/content/${moduleId}`)
+}
+
+export async function publishContent(contentId: string): Promise<{ status: string }> {
+  return apiFetch(`/content/${contentId}/publish`, { method: 'POST' })
+}
+
+// =============================================================================
+// DEADLINES & ESCALATION
+// =============================================================================
+
+export async function getDeadlines(limit?: number): Promise<DeadlineListResponse> {
+  const qs = limit ? `?limit=${limit}` : ''
+  return apiFetch<DeadlineListResponse>(`/deadlines${qs}`)
+}
+
+export async function getOverdueDeadlines(): Promise<DeadlineListResponse> {
+  return apiFetch<DeadlineListResponse>('/deadlines/overdue')
+}
+
+export async function checkEscalation(): Promise<EscalationResponse> {
+  return apiFetch<EscalationResponse>('/escalation/check', { method: 'POST' })
+}
+
+// =============================================================================
+// AUDIT & STATS
+// =============================================================================
+
+export async function getAuditLog(filters?: {
+  action?: string
+  entity_type?: string
+  limit?: number
+  offset?: number
+}): Promise<AuditLogResponse> {
+  const params = new URLSearchParams()
+  if (filters?.action) params.set('action', filters.action)
+  if (filters?.entity_type) params.set('entity_type', filters.entity_type)
+  if (filters?.limit) params.set('limit', String(filters.limit))
+  if (filters?.offset) params.set('offset', String(filters.offset))
+  const qs = params.toString()
+  return apiFetch<AuditLogResponse>(`/audit-log${qs ? `?${qs}` : ''}`)
+}
+
+export async function getStats(): Promise<TrainingStats> {
+  return apiFetch<TrainingStats>('/stats')
+}
+
+// =============================================================================
+// BULK GENERATION
+// =============================================================================
+
+export async function generateAllContent(language?: string): Promise<{ generated: number; skipped: number; errors: string[] }> {
+  const qs = language ? `?language=${language}` : ''
+  return apiFetch(`/content/generate-all${qs}`, { method: 'POST' })
+}
+
+export async function generateAllQuizzes(): Promise<{ generated: number; skipped: number; errors: string[] }> {
+  return apiFetch('/content/generate-all-quiz', { method: 'POST' })
+}
+
+// =============================================================================
+// MEDIA (Audio/Video)
+// =============================================================================
+
+export async function generateAudio(moduleId: string): Promise<TrainingMedia> {
+  return apiFetch<TrainingMedia>(`/content/${moduleId}/generate-audio`, { method: 'POST' })
+}
+
+export async function getModuleMedia(moduleId: string): Promise<{ media: TrainingMedia[]; total: number }> {
+  return apiFetch(`/media/${moduleId}`)
+}
+
+export async function getMediaURL(mediaId: string): Promise<{ bucket: string; object_key: string; mime_type: string }> {
+  return apiFetch(`/media/${mediaId}/url`)
+}
+
+export async function publishMedia(mediaId: string, publish?: boolean): Promise<{ status: string; is_published: boolean }> {
+  return apiFetch(`/media/${mediaId}/publish`, {
+    method: 'POST',
+    body: JSON.stringify({ publish: publish !== false }),
+  })
+}
+
+export async function generateVideo(moduleId: string): Promise<TrainingMedia> {
+  return apiFetch<TrainingMedia>(`/content/${moduleId}/generate-video`, { method: 'POST' })
+}
+
+export async function previewVideoScript(moduleId: string): Promise<{ title: string; sections: Array<{ heading: string; text: string; bullet_points: string[] }> }> {
+  return apiFetch(`/content/${moduleId}/preview-script`, { method: 'POST' })
+}