fix(mesh): radio + router reliability hardening#10424

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DatanoiseTV wants to merge 8 commits into

meshtastic:developfrom

DatanoiseTV:fix/radio-mesh-reliability

Commits on May 8, 2026

radio: return real status from reconfigure() and stop panicking on SPI errors
DatanoiseTV
committed
mesh: null-check getMeshNode in handleFromRadio
DatanoiseTV
committed
radio: drop oversized RX packets instead of asserting
DatanoiseTV
committed
mesh: add exponential backoff and jitter to retransmits
DatanoiseTV
committed
router: skip pre-encryption packet copy when MQTT does not need it
DatanoiseTV
committed
router: don't evict ACKs when a background-priority packet arrives full
DatanoiseTV
committed
radio: poll TX_DONE and stuck-TX timeout from main loop
DatanoiseTV
committed
mesh: bound the user-facing notification sprintf calls
DatanoiseTV
committed