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6744eb136d
- Fix use-after-free crash on hangup: set _call_state=IDLE before deleting _lxst_audio, preventing pump_call_tx() (runs without LVGL lock) from accessing freed memory - Replace single-slot _call_signal_pending with 8-element ring buffer queue to prevent signal loss when CONNECTING+ESTABLISHED arrive in rapid succession - Extract TX pump into pump_call_tx() called right after reticulum->loop() for low-latency audio TX without LVGL lock dependency (was buried at step 10) - Tune ES7210 mic gain to 21dB (was 15dB) to improve Codec2 input level without ADC clipping that occurred at 24dB - I2S capture: use APLL for accurate 8kHz clock, direct 8kHz sampling (no more 16→8kHz decimation), DMA 16x64 for encode burst headroom - Reduce Reticulum log verbosity to LOG_INFO (was LOG_TRACE) - BLE: add ble_hs_sched_reset() tiered recovery before reboot on desync, widen supervision timeout to 4.0s for WiFi coexistence - Add UDP multicast log broadcasting and OTA flash support Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>