- Expand subscription-billing.md with complete system documentation
- Add background tasks section with scheduling examples
- Add capacity forecasting with API examples
- Document all new API endpoints (trends, recommendations, snapshot)
- Add CapacitySnapshot model documentation
- Include infrastructure scaling reference table
- Update capacity-monitoring.md with forecasting features
- Add subscription capacity tracking section
- Document growth trends API with example responses
- Add scaling recommendations with severity levels
- Include usage examples for capacity planning
- Add historical data and export options
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>