- Added IPackRunIncidentModeService interface for managing incident mode activation, deactivation, and status retrieval.
- Created PackRunIncidentModeService class implementing the service interface with methods for activating, deactivating, and escalating incident modes.
- Introduced incident mode status model (PackRunIncidentModeStatus) and related enums for escalation levels and activation sources.
- Developed retention policy, telemetry settings, and debug capture settings models to manage incident mode configurations.
- Implemented SLO breach notification handling to activate incident mode based on severity.
- Added in-memory store (InMemoryPackRunIncidentModeStore) for testing purposes.
- Created comprehensive unit tests for incident mode service, covering activation, deactivation, status retrieval, and SLO breach handling.
