feat(academy): bridge Academy with Training Engine for course generation

- Add POST /academy/courses/generate endpoint that creates an academy
  course from a training module (with content + quiz as lessons)
- Add POST /academy/courses/generate-all to bulk-generate all courses
- Fix academy API response mapping (snake_case → camelCase)
- Fix fetchCourses/fetchCourse/fetchEnrollments/fetchStats to unwrap
  backend response wrappers ({courses:[...]}, {course:{...}})
- Add "Alle Kurse generieren" button to academy overview page
- Fix bulkResult.errors crash in training page (optional chaining)
- Add SetAcademyCourseID to training store for bidirectional linking

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

ai-compliance-sdk/cmd/server/main.go

@@ -114,7 +114,7 @@ func main() {
 	workshopHandlers := handlers.NewWorkshopHandlers(workshopStore)
 	portfolioHandlers := handlers.NewPortfolioHandlers(portfolioStore)
 	draftingHandlers := handlers.NewDraftingHandlers(accessGate, providerRegistry, piiDetector, auditStore, trailBuilder)
-	academyHandlers := handlers.NewAcademyHandlers(academyStore)
+	academyHandlers := handlers.NewAcademyHandlers(academyStore, trainingStore)
 	whistleblowerHandlers := handlers.NewWhistleblowerHandlers(whistleblowerStore)
 	incidentHandlers := handlers.NewIncidentHandlers(incidentStore)
 	vendorHandlers := handlers.NewVendorHandlers(vendorStore)
@@ -483,6 +483,13 @@ func main() {
 
 			// Statistics
 			academyRoutes.GET("/stats", academyHandlers.GetStatistics)
+
+			// Course Generation from Training Modules
+			academyRoutes.POST("/courses/generate", academyHandlers.GenerateCourseFromTraining)
+			academyRoutes.POST("/courses/generate-all", academyHandlers.GenerateAllCourses)
+
+			// Certificate PDF
+			academyRoutes.GET("/certificates/:id/pdf", academyHandlers.DownloadCertificatePDF)
 		}
 
 		// Training Engine routes - Compliance Training Content Pipeline