Add StatusUpdateTime support for unit and assignment models

[porcej]

Summary

• Bump Dashboard.Models submodule to include StatusUpdateTime on UnitDto and UnitAssignmentDto
• Propagate StatusUpdateTime between global units and incident assignments in CAD
• Stamp DateTime.UtcNow in UpdateUnitStatus so the status-id-only SignalR path still populates the field

Closes #47

Test plan

• Confirm submodule initializes to commit with StatusUpdateTime on both DTOs
• Build project successfully after submodule update
• Send IncidentUnitStatusChanged with a UnitAssignmentDto that includes StatusUpdateTime and verify it is stored on both the assignment and the matching global unit
• Call UnitStatusChanged(radioName, statusId) and verify the unit’s StatusUpdateTime is set
• Merge into updated main (post-45 add support for native docker deploymnet #46) and confirm no conflicts

Made with Cursor

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Default timestamp clears global unit

Medium Severity

In AddOrUpdateIncidentUnit, assigning globalUnit.StatusUpdateTime from the incoming UnitAssignmentDto always runs, so a payload without StatusUpdateTime (default DateTime) overwrites a timestamp previously set on the global unit—for example via UpdateUnitStatus—with an invalid default value.

 

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