fix(app) fix LateInitializationError crash in BackgroundService when mic was never started

[krushnarout]

Summary

• BackgroundService declares _service as a late field, initialized only inside init() / ensureRunning().
• When a user taps close/skip during onboarding before the mic was ever started, SpeechProfileProvider.close() → _stopPhoneMicStreaming() → MicRecorderBackgroundService.stop() → BackgroundService.stopRecorder() is called while _service is still uninitialized — producing a LateInitializationError.
• Fix: guard stop() and stopRecorder() with if (_status == null) return;. _status is null iff init() was never called, so this is a reliable sentinel without changing the existing API.
• Also removes an unused package:omi/backend/http/shared.dart import from the same file.

Crash

Fatal Exception: FlutterError
LateInitializationError: Field '_service@1489031061' has not been initialized.
package:omi/services/services.dart

0  BackgroundService.stopRecorder               (services.dart)
1  MicRecorderBackgroundService.stop + 280      (services.dart:280)
2  SpeechProfileProvider._stopPhoneMicStreaming  (speech_profile_provider.dart:222)
3  SpeechProfileProvider.close                  (speech_profile_provider.dart:413)
4  _OnboardingWrapperState.build.<fn>           (wrapper.dart:473)

Crashlytics: https://console.firebase.google.com/u/0/project/based-hardware/crashlytics/app/ios:com.friend-app-with-wearable.ios12/issues/d55812826a4ed2693249a434a764a7f3

Test plan

• Start the speech profile onboarding flow with phone mic enabled, then immediately tap close/skip before the mic starts recording — verify no crash

🤖 Generated with Claude Code

[cubic-dev-ai]

No issues found across 1 file

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