B12: AI analysis now async — POST /ai-analysis queues job, returns immediately.
Worker supports both active-recall and feynman-evaluation types.
B13: DocumentImportWorker fully implemented — all processing moved from
service to worker. Service only queues and returns.
B14: NotificationWorker already complete (no changes needed).
B15: All 3 workers now fully functional.
New endpoint: GET /ai-analysis/jobs/:id for job status polling.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
B7 Feynman evaluation: POST /ai-analysis/feynman
B8 Knowledge import: replaces DocumentImport setTimeout mock with AI
B9 Review card generation: POST /reviews/generate-cards
B10 Learning trend analysis: GET /activity/trend
4 workflows, 4 prompts, 4 schemas, all registered in AiModule.
AiAnalysisRepository made generic to handle varied result shapes.
DocumentImportService now calls KnowledgeImportWorkflow + saves to DB.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
