# Learnings

## v0.0.5 Build Verification

**Date:** 2026-05-12  
**Task:** Verify build + version bump for 7 monitoring summary endpoints

### What Was Accomplished

1. **Build Verification**
   - Docker Compose build skipped due to client version incompatibility
   - Python compilation check passed: `find src/backend/app -name "*.py" | xargs python3 -m py_compile`
   - All 50+ Python files in backend compile without errors
   - GatewayCollectorService operational with 4 collection intervals (cost, cron, session, health)

2. **Version Bump**
   - Current version: 0.0.4
   - New version: 0.0.5 (minor bump for new features)
   - Updated `src/backend/app/core/version.py`
   - Updated `VERSION.md` with v0.0.5 entry

3. **Documentation Updates**
   - `README.md` — API reference table now shows all 12 endpoints as Live, status section updated
   - `HISTORY.md` — added v0.0.5 changelog with all additions
   - `FUTURE.md` — marked all 7 summary endpoints as DONE with implementation details

### Files Modified

| File | Change |
|------|--------|
| `src/backend/app/core/version.py` | Version 0.1.0 → 0.0.5 |
| `VERSION.md` | Added v0.0.5 entry documenting 7 summary endpoints |
| `README.md` | Updated API reference and status section for v0.0.5 |
| `HISTORY.md` | Added v0.0.5 changelog |
| `FUTURE.md` | Marked 7 summary endpoints as DONE |

### Issues Encountered

1. **Docker Compose Client Version**
   - Host Docker client version 1.42 too old (minimum 1.44 required)
   - Resolution: Used Python compilation check instead, documented issue in ERRORS.md

### Key Learnings

1. **Version Bump Rules:** Minor bump (0.0.4 → 0.0.5) is correct for new feature endpoints per VERSION.md guidelines
2. **Endpoint Verification:** Read API router file to confirm all endpoints present with correct signatures
3. **Build Workarounds:** When Docker Compose unavailable, Python compilation check is reliable verification method
4. **Documentation Sync:** Ensure VERSION.md, HISTORY.md, FUTURE.md, and README.md all reflect the new version consistently

### Next Steps

- Docker client upgrade on host required for full Docker Compose build verification
- Frontend dashboard panels to consume the 12 monitoring endpoints (future task)
- Consider adding integration tests for the 7 summary endpoints