Critical fixes to prevent app crashes when screens are kept open for extended periods:
- Add repositoryScope with SupervisorJob for structured concurrency in TssRepository
- Replace detached CoroutineScope(Dispatchers.IO).launch with repositoryScope.launch:
- Session event subscription (line 206)
- Session status polling (line 291)
- Message routing (line 1508)
- Add cleanup() method to properly cancel all jobs and repositoryScope
- Update disconnect() to also cancel sessionStatusPollingJob
- Update MainViewModel.onCleared() to call repository.cleanup()
This ensures all background coroutines are properly cancelled when the ViewModel
is cleared, preventing memory accumulation over time.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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