- Add mission observability types and API helpers, and forward mission events through SSE with mission filtering support
- Expand MissionManager with health indicators, activity/event log views, improved autopilot controls, and activity auto-scroll behavior
- Refine mission detail mobile controls and styling updates for responsive observability surfaces
- Add regression coverage for MissionManager behavior/mobile CSS and SSE mission filtering
- Include a changeset documenting the mission dashboard observability update
