Replace src/main.cpp with a minimal single-object A2DP sink advertising
"BikeAudio", to verify the iPhone can discover + connect. Isolates the
sink/advertising path that the full sketch corrupts by instantiating one
sink + two sources (ESP32-A2DP uses a global singleton that each
constructor overwrites; a single Bluedroid A2DP callback is registered, so
the sink is orphaned and never discoverable). Not the final firmware —
does not drive the speakers.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
blue
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