feat: Add comprehensive provider health monitoring and failover system
- Implemented ProviderHealthMonitor for real-time tracking
- Monitors availability, response times, success rates
- Automatic marking unavailable after failures
- Background health check loop
- Added ProviderFailover for automatic provider switching
- Configurable retry attempts with exponential backoff
- Integration with health monitoring
- Smart provider selection
- Created MonitoredProviderWrapper for performance tracking
- Transparent monitoring for any provider
- Automatic metric recording
- No changes needed to existing providers
- Implemented ProviderConfigManager for dynamic configuration
- Runtime updates without restart
- Per-provider settings (timeout, retries, bandwidth)
- JSON-based persistence
- Added Provider Management API (15+ endpoints)
- Health monitoring endpoints
- Configuration management
- Failover control
- Comprehensive testing (34 tests, 100% pass rate)
- Health monitoring tests
- Failover scenario tests
- Configuration management tests
- Documentation updates
- Updated infrastructure.md
- Updated instructions.md
- Created PROVIDER_ENHANCEMENT_SUMMARY.md
Total: ~2,593 lines of code, 34 passing tests
Lukas
fecdb38a90