Harden marathon-tested OTA and hardware paths

Add durable TempRadio, ACL, clock, bridge, GPS/I2C, USB logging, and Indicator recovery safeguards together with expanded automation, build/profile contracts, release metadata, and the hardware validation ledger.

examples/simple_sensor/SensorMesh.h

@@ -195,6 +195,7 @@ private:
 #endif
   uint8_t reply_data[MAX_PACKET_PAYLOAD];
   unsigned long dirty_contacts_expiry;
+  uint8_t contacts_save_failures;
   CayenneLPP telemetry;
   TransportKeyStore key_store;
   RegionMap region_map;