KnowledgeVault AI module-spec M-04

M-04 delivers the live voice capture session: the core expert-facing interaction where an authenticated expert answers AI-generated questions by voice and sees extracted knowledge objects populate a structuring panel in real time. The module provides three API routes (POST /api/sessions/start, POST /api/sessions/:id/audio, POST /api/sessions/:id/complete), the capture_sessions Postgres table, a SharedExpertContext in-process service that holds live session state, Deepgram Nova-2 WebSocket integr