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feat(#71): implement graph data API

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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>
This commit is contained in:
Jason Woltje
2026-02-02 15:27:00 -06:00
parent 3969dd5598
commit 5d348526de
240 changed files with 10400 additions and 23 deletions
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docs/reports/qa-automation/escalated/home-localadmin-src-mosaic-stack-apps-orchestrator-src-queue-queue.service.ts_20260202-1501_5_remediation_needed.md Normal file
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# QA Remediation Report
**File:** /home/localadmin/src/mosaic-stack/apps/orchestrator/src/queue/queue.service.ts
**Tool Used:** Edit
**Epic:** general
**Iteration:** 5
**Generated:** 2026-02-02 15:01:40
## Status
Pending QA validation
## Next Steps
This report was created by the QA automation hook.
To process this report, run:
```bash
claude -p "Use Task tool to launch universal-qa-agent for report: /home/localadmin/src/mosaic-stack/docs/reports/qa-automation/escalated/home-localadmin-src-mosaic-stack-apps-orchestrator-src-queue-queue.service.ts_20260202-1501_5_remediation_needed.md"
```