Fixes CI pipeline failures caused by missing Prisma Client generation and TypeScript type safety issues. Added Prisma generation step to CI pipeline, installed missing type dependencies, and resolved 40+ exactOptionalPropertyTypes violations across service layer.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Issues resolved:
- #68: pgvector Setup
* Added pgvector vector index migration for knowledge_embeddings
* Vector index uses HNSW algorithm with cosine distance
* Optimized for 1536-dimension OpenAI embeddings
- #69: Embedding Generation Pipeline
* Created EmbeddingService with OpenAI integration
* Automatic embedding generation on entry create/update
* Batch processing endpoint for existing entries
* Async generation to avoid blocking API responses
* Content preparation with title weighting
- #70: Semantic Search API
* POST /api/knowledge/search/semantic - pure vector search
* POST /api/knowledge/search/hybrid - RRF combined search
* POST /api/knowledge/embeddings/batch - batch generation
* Comprehensive test coverage
* Full documentation in docs/SEMANTIC_SEARCH.md
Technical details:
- Uses OpenAI text-embedding-3-small model (1536 dims)
- HNSW index for O(log n) similarity search
- Reciprocal Rank Fusion for hybrid search
- Graceful degradation when OpenAI not configured
- Async embedding generation for performance
Configuration:
- Added OPENAI_API_KEY to .env.example
- Optional feature - disabled if API key not set
- Falls back to keyword search in hybrid mode
- Add POST /api/knowledge/import endpoint for .md and .zip files
- Add GET /api/knowledge/export endpoint with markdown/json formats
- Import parses frontmatter (title, tags, status, visibility)
- Export includes frontmatter in markdown format
- Add ImportExportActions component with drag-and-drop UI
- Add import progress dialog with success/error summary
- Add export dropdown with format selection
- Include comprehensive test suite
- Support bulk import with detailed error reporting
Issue #73 - Entry-Centered Graph View:
- Added GET /api/knowledge/entries/:id/graph endpoint with depth parameter
- Returns entry + connected nodes with link relationships
- Created GraphService for graph traversal using BFS
- Added EntryGraphViewer component for frontend
- Integrated graph view tab into entry detail page
Issue #74 - Graph Statistics Dashboard:
- Added GET /api/knowledge/stats endpoint
- Returns overview stats (entries, tags, links by status)
- Includes most connected entries, recent activity, tag distribution
- Created StatsDashboard component with visual stats
- Added route at /knowledge/stats
Backend:
- GraphService: BFS-based graph traversal with configurable depth
- StatsService: Parallel queries for comprehensive statistics
- GraphQueryDto: Validation for depth parameter (1-5)
- Entity types for graph nodes/edges and statistics
- Unit tests for both services
Frontend:
- EntryGraphViewer: Entry-centered graph visualization
- StatsDashboard: Statistics overview with charts
- Graph view tab on entry detail page
- API client functions for new endpoints
- TypeScript strict typing throughout
- Add resolveLinksFromContent() to parse wiki links from content and resolve them
- Add getBacklinks() to find all entries that link to a target entry
- Import parseWikiLinks from utils for content parsing
- Export new types: ResolvedLink, Backlink
- Add comprehensive tests for new functionality (27 tests total)
Implements Personality Module:
- Personality model and Prisma migration
- CRUD API with controller and service
- Comprehensive test suite
- Integration with workspace
- Add Personality model to Prisma schema with FormalityLevel enum
- Create migration and seed with 6 default personalities
- Implement CRUD API with TDD approach (97.67% coverage)
* PersonalitiesService: findAll, findOne, findDefault, create, update, remove
* PersonalitiesController: REST endpoints with auth guards
* Comprehensive test coverage (21 passing tests)
- Add Personality types to shared package
- Create frontend components:
* PersonalitySelector: dropdown for choosing personality
* PersonalityPreview: preview personality style and system prompt
* PersonalityForm: create/edit personalities with validation
* Settings page: manage personalities with CRUD operations
- Integrate with Ollama API:
* Support personalityId in chat endpoint
* Auto-inject system prompt from personality
* Fall back to default personality if not specified
- API client for frontend personality management
All tests passing with 97.67% backend coverage (exceeds 85% requirement)
- Create LinkResolutionService with workspace-scoped link resolution
- Resolve links by: exact title match, slug match, fuzzy title match
- Handle ambiguous matches (return null if multiple matches)
- Support batch link resolution with deduplication
- Comprehensive test suite with 19 tests, all passing
- 100% coverage of public methods
- Integrate service with KnowledgeModule
Closes#60 (KNOW-008)
