- Introduced optional keepalive settings: `keepalive_idle` and `keepalive_count` in the Server struct.
- Implemented UI controls for keepalive settings in System Settings, including validation and persistence.
- Added localization support for new keepalive fields in multiple languages.
- Created a manual test tracking plan for verifying keepalive controls and their behavior.
- Updated existing tests to cover new functionality and ensure proper validation of keepalive inputs.
- Ensured safe defaults and fallback behavior for missing or invalid keepalive values.
- Implemented tests for the emergency server (Tier 2) to validate health checks, security reset functionality, and independent access.
- Created a comprehensive suite for system settings feature toggles, ensuring proper state management and API call metrics reporting.
- Removed redundant feature toggle tests from the system settings spec to maintain clarity and focus.
- Enhanced test isolation by restoring default feature flag states after each test.
