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e343caf2d2
Reduces crash rate from every 60-85s to 1 reboot per 6+ minutes. Zero WDT triggers in 10-minute stability test. BLE mutex fixes (BLEInterface.cpp): - Release _mutex before blocking GATT ops in onConnected() and onServicesDiscovered() — prevents 5-30s main-loop stalls during service discovery, notification subscribe, identity exchange - Non-blocking try_lock() for peerCount(), getConnectedPeerSummaries(), get_stats() — returns empty/default if BLE task holds mutex - Write-without-response in initiateHandshake() WDT and persistence (main.cpp, sdkconfig.defaults, microReticulum): - 30s WDT timeout (up from 10s) for SPIFFS flash I/O headroom - Register Identity::set_persist_yield_callback() to feed WDT every 5 entries during save_known_destinations() (70+ entries = 30-50s) - WDT feeds between reticulum and identity persist calls BLE host desync recovery (NimBLEPlatform): - Time-based desync tracking instead of aggressive counter-based reboot - 60s tolerance without connections, 5 minutes with active connections (data still flows over existing BLE mesh links) - Remove immediate recoverBLEStack() from 574 handler and enterErrorRecovery() — let startScan() manage reboot decision - Increase CONNECTION_COOLDOWN from 3s to 10s to reduce 574 risk - Increase SCAN_FAIL_RECOVERY_THRESHOLD from 5 to 10 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>