test: Add Report service tests (448 lines, 21 tests)
Completed analytics module testing with comprehensive report generation tests:
- Weekly report generation with summary, patterns, predictions, highlights
- Monthly report generation with trends and weekly breakdown
- Data export in multiple formats (JSON, CSV, PDF)
- Weekly summary calculation (sleep, feeding, diaper statistics)
- Monthly summary with weekly averages
- Trend analysis (improving/stable/declining sleep, increasing/stable/decreasing feeding)
- Milestone tracking
- CSV conversion for data export
- Highlights generation from patterns
- Custom date range support
Tests cover:
- Report generation with all required fields
- Custom start dates for reports
- Child not found error handling
- Summary statistics calculations (total sleep, feedings, diapers)
- Trend detection (comparing first half vs second half of period)
- Export format handling (JSON, CSV)
- Weekly breakdown for monthly reports
Analytics Module Complete: 3/3 services ✅
- Pattern Analysis (790 lines, 29 tests)
- Prediction (515 lines, 25 tests)
- Report (448 lines, 21 tests)
Total Analytics: 1,753 lines, 75 test cases
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>