- Add maintenance service with CRUD operations (create, get, list, update, delete)
- Export Maintenance and MaintenanceSummary types
- Export all maintenance request/response types
- Add maintenance namespace to OpenStatusClient interface
- Update README with maintenance service documentation
- Remove non-existent Maintenance export from status page types

* fix gh action

* add status page

Add new StatusReportService for managing incident and maintenance reports:
- createStatusReport: Create new status reports
- getStatusReport: Get report with full update timeline
- listStatusReports: List reports with pagination and filtering
- updateStatusReport: Update report metadata
- deleteStatusReport: Delete reports
- addStatusReportUpdate: Add updates to report timeline

Update README with comprehensive documentation for the new service.

* small improvment

* more improvment

* improve sdk

* improve sdk

* typo readme