Add Knowledge Base management system for AI agent specs
Full-stack implementation enabling UI-driven management of the 5 AI agent knowledge bases
(Legal, Brand Barclays, Brand Barclaycard, Channel Best Practices, Channel Tech Specs).
Backend:
- 4 new DB models: KnowledgeBase, SourceDocument, SpecVersion, ProcessingJob
- Migration 006: creates tables, seeds 5 KB rows, imports existing prompts/*.md as v1 specs
- KnowledgeBaseRepository with full CRUD for all 4 tables
- LlamaParseService for document parsing, KnowledgeBaseService for pipeline orchestration
- ReferenceDocsService updated with DB-backed spec loading + cache invalidation
- 11 REST endpoints under /api/knowledge-base (list, detail, upload, delete, process, job status, versions, diff, activate)
- StorageService extended with KB document storage
Frontend:
- TypeScript types for all KB entities (KnowledgeBaseListItem, SourceDocument, ProcessingJob, SpecVersion, DiffResult)
- ApiService methods for all KB endpoints including multipart file upload
- KnowledgeBase component with 3-level UI: agent grid, detail view (documents + versions tabs), diff viewer
- Drag-and-drop file upload, processing progress bar with 3s polling, version comparison
- KnowledgeBaseIcon + Sidebar nav item with adminOnly filtering
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>