Agrega tests de integracion end-to-end que validan el pipeline completo:
streaming events → ProgressReporter → mock sender → Matrix messages.
- TestIntegration_StreamToProgressReporter: simula sesion completa con
init, 3 tool_use, text, result y finalize — verifica 1 send + 4 edits
- TestIntegration_NoStreamingNoSideEffects: verifica que streaming=false
no genera ningun side effect (regression test)
- TestIntegration_ProgressReporterWithSendError: verifica que errores
de envio no causan panic y se manejan gracefully
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
