iOS: Missing status update callbacks (statusLevel/statusCode) - parity with Android

[ringo-redbit]

Description

The iOS implementation of the Driver SDK is missing status update callbacks that are available on Android. This creates a platform inconsistency where Android apps receive updateStatus events with status level/code information, but iOS apps do not.

Current Behavior

Android (works):

• DriverContext has .setDriverStatusListener() method
• Receives callbacks with statusLevel, statusCode, statusMsg
• Events are emitted as updateStatus to React Native
• Example statuses: INITIALIZATION_STARTED, VEHICLE_NOT_FOUND, UNAUTHORIZED, etc.

iOS (missing):

• GMTDDriverContext has no status listener API
• No delegate protocol for status updates
• Only vehicle update events work: didSucceedVehicleUpdate, didFailVehicleUpdate
• No visibility into SDK initialization status, auth errors, or other diagnostic information

Expected Behavior

iOS should provide equivalent status callback functionality as Android, allowing apps to:

• Monitor SDK initialization progress
• Detect authentication/authorization failures
• Receive diagnostic status codes for troubleshooting
• Implement unified cross-platform error handling

Code References

Android implementation:

// android/src/main/java/com/google/android/react/driversdk/lmfs/DeliveryDriverModule.java
DriverContext driverContext = DriverContext.builder(application)
    .setDriverStatusListener(
        (statusLevel, statusCode, statusMsg, error) -> {
          updateStatus(statusLevel, statusCode, statusMsg);
        })