✓Master Document Register (MDR) with RNEI numbering
✓Issue status: DRAFT → IDC → IFR → IFA → IFC → AFC → ASB
✓DDM engine — automatic transmittal generation
✓Manual and auto transmittal with PDF cover sheet
✓Multi-cycle review: parallel and sequential routing
✓Comment register — C-001/C-002 auto-numbering
✓Major/Minor/Info severity per comment
✓Review SLA tracking with overdue alerts
✓Review matrix dashboard
✓Client review portal — token-based, no account needed
✓Client documents module
✓BCF issue tracking — BIM integration
✓In-browser PDF viewer with auth streaming
✓Document checkout system
✓Bulk upload with AI title block extraction
✓AI Document Classification
✓AI Transmittal Letter Drafting
✓AI Revision Change Summary
✓AI Drawing Completeness Checker
✓AI Smart Distribution Matrix
✓AI Interdisciplinary Clash Detector
✓Semantic RAG Document Search