fix: stop SIGTRAP converting Int32 local-stats counters to UInt32 for Live Activity

Local-stats telemetry counters (numPacketsRx/Tx, numTotalNodes, etc.) are
firmware uint32 values stored into Int32 entity fields via
Int32(truncatingIfNeeded:), so any value above Int32.max is stored as a
negative Int32. The Live Activity (MeshActivityStatus) build then read them
back with the trapping UInt32(_:) initializer, which crashes on a negative
value ('Negative value is not representable in type UInt32') — a SIGTRAP in
telemetryPacket at MeshPackets.swift:1032 on the MeshPackets actor. A
long-running node whose packet counters exceed Int32.max crash-loops on
every local-stats packet (2.7.13 App Store issue 212e3554).

Use UInt32(bitPattern:), the exact inverse of the Int32(truncatingIfNeeded:)
storage, to round-trip the original firmware value. Fix all three sites that
build MeshActivityStatus: MeshPackets (live update), Connect, and CarPlay
(initial state).

Author: garthvh

Meshtastic/CarPlay/CarPlaySceneDelegate.swift

@@ -731,17 +731,17 @@ class CarPlaySceneDelegate: UIResponder, CPTemplateApplicationSceneDelegate, CPI
 		let timerSeconds = 900 // 15 minute local stats interval
 		let future = Date(timeIntervalSinceNow: Double(timerSeconds))
 		let initialState = MeshActivityAttributes.ContentState(
-			uptimeSeconds: UInt32(mostRecent?.uptimeSeconds ?? 0),
+			uptimeSeconds: UInt32(bitPattern: mostRecent?.uptimeSeconds ?? 0),
 			channelUtilization: mostRecent?.channelUtilization ?? 0.0,
 			airtime: mostRecent?.airUtilTx ?? 0.0,
-			sentPackets: UInt32(mostRecent?.numPacketsTx ?? 0),
-			receivedPackets: UInt32(mostRecent?.numPacketsRx ?? 0),
-			badReceivedPackets: UInt32(mostRecent?.numPacketsRxBad ?? 0),
-			dupeReceivedPackets: UInt32(mostRecent?.numRxDupe ?? 0),
-			packetsSentRelay: UInt32(mostRecent?.numTxRelay ?? 0),
-			packetsCanceledRelay: UInt32(mostRecent?.numTxRelayCanceled ?? 0),
-			nodesOnline: UInt32(mostRecent?.numOnlineNodes ?? 0),
-			totalNodes: UInt32(mostRecent?.numTotalNodes ?? 0),
+			sentPackets: UInt32(bitPattern: mostRecent?.numPacketsTx ?? 0),
+			receivedPackets: UInt32(bitPattern: mostRecent?.numPacketsRx ?? 0),
+			badReceivedPackets: UInt32(bitPattern: mostRecent?.numPacketsRxBad ?? 0),
+			dupeReceivedPackets: UInt32(bitPattern: mostRecent?.numRxDupe ?? 0),
+			packetsSentRelay: UInt32(bitPattern: mostRecent?.numTxRelay ?? 0),
+			packetsCanceledRelay: UInt32(bitPattern: mostRecent?.numTxRelayCanceled ?? 0),
+			nodesOnline: UInt32(bitPattern: mostRecent?.numOnlineNodes ?? 0),
+			totalNodes: UInt32(bitPattern: mostRecent?.numTotalNodes ?? 0),
 			timerRange: Date.now...future
 		)
 

Meshtastic/Helpers/MeshPackets.swift

@@ -1025,17 +1025,17 @@ actor MeshPackets {
 
 						let fifteenMinutesLater = Calendar.current.date(byAdding: .minute, value: (Int(15) ), to: Date())!
 						let date = Date.now...fifteenMinutesLater
-						let updatedMeshStatus = MeshActivityAttributes.MeshActivityStatus(uptimeSeconds: telemetry.uptimeSeconds.map { UInt32($0) },
+						let updatedMeshStatus = MeshActivityAttributes.MeshActivityStatus(uptimeSeconds: telemetry.uptimeSeconds.map { UInt32(bitPattern: $0) },
 																						  channelUtilization: telemetry.channelUtilization,
 																						  airtime: telemetry.airUtilTx,
-																						  sentPackets: UInt32(telemetry.numPacketsTx),
-																						  receivedPackets: UInt32(telemetry.numPacketsRx),
-																						  badReceivedPackets: UInt32(telemetry.numPacketsRxBad),
-																						  dupeReceivedPackets: UInt32(telemetry.numRxDupe),
-																						  packetsSentRelay: UInt32(telemetry.numTxRelay),
-																						  packetsCanceledRelay: UInt32(telemetry.numTxRelayCanceled),
-																						  nodesOnline: UInt32(telemetry.numOnlineNodes),
-																						  totalNodes: UInt32(telemetry.numTotalNodes),
+																						  sentPackets: UInt32(bitPattern: telemetry.numPacketsTx),
+																						  receivedPackets: UInt32(bitPattern: telemetry.numPacketsRx),
+																						  badReceivedPackets: UInt32(bitPattern: telemetry.numPacketsRxBad),
+																						  dupeReceivedPackets: UInt32(bitPattern: telemetry.numRxDupe),
+																						  packetsSentRelay: UInt32(bitPattern: telemetry.numTxRelay),
+																						  packetsCanceledRelay: UInt32(bitPattern: telemetry.numTxRelayCanceled),
+																						  nodesOnline: UInt32(bitPattern: telemetry.numOnlineNodes),
+																						  totalNodes: UInt32(bitPattern: telemetry.numTotalNodes),
 																						  timerRange: date)
 
 						let alertConfiguration = AlertConfiguration(title: "Mesh activity update", body: "Updated Node Stats Data.", sound: .default)

Meshtastic/Views/Connect/Connect.swift

@@ -518,17 +518,17 @@ struct Connect: View {
 		let activityAttributes = MeshActivityAttributes(nodeNum: Int(node?.num ?? 0), name: node?.user?.longName?.addingVariationSelectors ?? "unknown", shortName: node?.user?.shortName ?? "?")
 
 		let future = Date(timeIntervalSinceNow: Double(timerSeconds))
-		let initialContentState = MeshActivityAttributes.ContentState(uptimeSeconds: UInt32(mostRecent?.uptimeSeconds ?? 0),
+		let initialContentState = MeshActivityAttributes.ContentState(uptimeSeconds: UInt32(bitPattern: mostRecent?.uptimeSeconds ?? 0),
 																	  channelUtilization: mostRecent?.channelUtilization ?? 0.0,
 																	  airtime: mostRecent?.airUtilTx ?? 0.0,
-																	  sentPackets: UInt32(mostRecent?.numPacketsTx ?? 0),
-																	  receivedPackets: UInt32(mostRecent?.numPacketsRx ?? 0),
-																	  badReceivedPackets: UInt32(mostRecent?.numPacketsRxBad ?? 0),
-																	  dupeReceivedPackets: UInt32(mostRecent?.numRxDupe ?? 0),
-																	  packetsSentRelay: UInt32(mostRecent?.numTxRelay ?? 0),
-																	  packetsCanceledRelay: UInt32(mostRecent?.numTxRelayCanceled ?? 0),
-																	  nodesOnline: UInt32(mostRecent?.numOnlineNodes ?? 0),
-																	  totalNodes: UInt32(mostRecent?.numTotalNodes ?? 0),
+																	  sentPackets: UInt32(bitPattern: mostRecent?.numPacketsTx ?? 0),
+																	  receivedPackets: UInt32(bitPattern: mostRecent?.numPacketsRx ?? 0),
+																	  badReceivedPackets: UInt32(bitPattern: mostRecent?.numPacketsRxBad ?? 0),
+																	  dupeReceivedPackets: UInt32(bitPattern: mostRecent?.numRxDupe ?? 0),
+																	  packetsSentRelay: UInt32(bitPattern: mostRecent?.numTxRelay ?? 0),
+																	  packetsCanceledRelay: UInt32(bitPattern: mostRecent?.numTxRelayCanceled ?? 0),
+																	  nodesOnline: UInt32(bitPattern: mostRecent?.numOnlineNodes ?? 0),
+																	  totalNodes: UInt32(bitPattern: mostRecent?.numTotalNodes ?? 0),
 																	  timerRange: Date.now...future)
 
 		let activityContent = ActivityContent(state: initialContentState, staleDate: Calendar.current.date(byAdding: .minute, value: 15, to: Date())!)