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stack/docs/scratchpads/67-search-ui.md
Jason Woltje 5d348526de feat(#71): implement graph data API
Implemented three new API endpoints for knowledge graph visualization:

1. GET /api/knowledge/graph - Full knowledge graph
   - Returns all entries and links with optional filtering
   - Supports filtering by tags, status, and node count limit
   - Includes orphan detection (entries with no links)

2. GET /api/knowledge/graph/stats - Graph statistics
   - Total entries and links counts
   - Orphan entries detection
   - Average links per entry
   - Top 10 most connected entries
   - Tag distribution across entries

3. GET /api/knowledge/graph/:slug - Entry-centered subgraph
   - Returns graph centered on specific entry
   - Supports depth parameter (1-5) for traversal distance
   - Includes all connected nodes up to specified depth

New Files:
- apps/api/src/knowledge/graph.controller.ts
- apps/api/src/knowledge/graph.controller.spec.ts

Modified Files:
- apps/api/src/knowledge/dto/graph-query.dto.ts (added GraphFilterDto)
- apps/api/src/knowledge/entities/graph.entity.ts (extended with new types)
- apps/api/src/knowledge/services/graph.service.ts (added new methods)
- apps/api/src/knowledge/services/graph.service.spec.ts (added tests)
- apps/api/src/knowledge/knowledge.module.ts (registered controller)
- apps/api/src/knowledge/dto/index.ts (exported new DTOs)
- docs/scratchpads/71-graph-data-api.md (implementation notes)

Test Coverage: 21 tests (all passing)
- 14 service tests including orphan detection, filtering, statistics
- 7 controller tests for all three endpoints

Follows TDD principles with tests written before implementation.
All code quality gates passed (lint, typecheck, tests).

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-02-02 15:27:00 -06:00

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Markdown

# Issue #67: [KNOW-015] Search UI
## Objective
Build a comprehensive search interface in the Next.js web UI with search-as-you-type, filters, keyboard shortcuts, and highlighted snippets.
## Approach
1. Review existing web UI structure and components
2. Design component architecture for search functionality
3. Implement TDD workflow (RED-GREEN-REFACTOR):
- Write tests for search input component
- Implement search input with Cmd+K shortcut
- Write tests for search results page
- Implement search results with highlighting
- Write tests for filter sidebar
- Implement filter functionality
- Add no results state
4. Ensure all tests pass and coverage meets 85% minimum
5. Run quality gates and code review
6. Commit and close issue
## Component Architecture
- `SearchInput` - Header search component with Cmd+K shortcut
- `SearchResults` - Main results page/component
- `SearchResultItem` - Individual result with highlighted snippets
- `SearchFilters` - Sidebar for tag and status filtering
- `NoResults` - Empty state component
## Progress
- [x] Create scratchpad
- [x] Review existing web UI structure
- [x] Write tests for SearchInput component
- [x] Implement SearchInput with keyboard shortcut
- [x] Write tests for SearchResults page
- [x] Implement SearchResults page
- [x] Write tests for SearchResultItem with highlighting
- [x] Implement result item with snippet highlighting
- [x] Write tests for SearchFilters
- [x] Implement filter sidebar
- [x] Write tests for NoResults state
- [x] Implement no results state
- [x] Add debounced search-as-you-type
- [x] Create search page at /knowledge/search
- [x] Add search button to Navigation header
- [x] Fix Input component to support forwardRef
- [x] All tests passing (100% coverage)
- [x] Typecheck passing
- [x] Lint passing
- [x] Commit changes (3cb6eb7)
- [ ] Close issue #67
## Summary
Successfully implemented comprehensive search UI for knowledge base with:
- Full TDD approach (tests written first)
- 100% code coverage on main components
- All acceptance criteria met
- PDA-friendly design principles followed
- Quality gates passed (typecheck, lint, tests)
Components created:
- SearchInput (debounced, Cmd+K shortcut)
- SearchFilters (tags and status filtering)
- SearchResults (main results view with highlighting)
- Search page at /knowledge/search
- Updated Navigation with search button
All files pass pre-commit hooks and quality checks.
## Testing Strategy
- Unit tests for all components
- Test keyboard shortcuts (Cmd+K, Escape)
- Test debouncing behavior
- Test filter interactions
- Test safe HTML rendering for highlights
- Test no results state
- Aim for 85%+ coverage
## Notes
- Use Shadcn/ui components (Input, Card, Badge, etc.)
- Follow PDA-friendly language (no "URGENT", "MUST", etc.)
- Use visual indicators: 🟢 Active, 🔵 Scheduled, ⏸️ Paused, 💤 Dormant, ⚪ Not started
- Safely render HTML snippets from API (use dangerouslySetInnerHTML with sanitization or a library)
- Debounce search input to avoid excessive API calls
- Cmd+K should open search modal/focus search input
- Escape should close search modal if open