Clearing callDebugBuffer in showConnectScreen() wiped all debug
events the moment a call ended, so the user saw empty logs. Moved
the clear to showCallScreen() instead — the buffer is reset at the
START of a new call, not the end. This way:
- After hanging up, all events from the call are still visible
- Starting a new call clears stale data from the previous one
- The reverse().find() for P2P badge still gets fresh data
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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