fix: address top Crashlytics crashes in beta 2.7.14 (#5672)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

core/common/src/commonMain/kotlin/org/meshtastic/core/common/util/NumberFormatter.kt

@@ -23,13 +23,17 @@ import kotlin.math.roundToLong
 object NumberFormatter {
     /** Formats a double value with the specified number of decimal places. */
     fun format(value: Double, decimalPlaces: Int): String {
+        if (value.isNaN() || value.isInfinite()) return "—"
         val factor = 10.0.pow(decimalPlaces)
         val rounded = (value * factor).roundToLong()
         return formatFixedPoint(rounded, decimalPlaces)
     }
 
     /** Formats a float value with the specified number of decimal places. */
-    fun format(value: Float, decimalPlaces: Int): String = format(value.toDouble(), decimalPlaces)
+    fun format(value: Float, decimalPlaces: Int): String {
+        if (value.isNaN() || value.isInfinite()) return "—"
+        return format(value.toDouble(), decimalPlaces)
+    }
 
     private fun formatFixedPoint(scaledValue: Long, decimalPlaces: Int): String {
         if (decimalPlaces == 0) return scaledValue.toString()

core/common/src/commonTest/kotlin/org/meshtastic/core/common/util/NumberFormatterTest.kt

@@ -35,4 +35,17 @@ class NumberFormatterTest {
         assertEquals("1", NumberFormatter.format(1.23, 0))
         assertEquals("-1", NumberFormatter.format(-1.23, 0))
     }
+
+    @Test
+    fun testFormatNaN() {
+        assertEquals("—", NumberFormatter.format(Double.NaN, 2))
+        assertEquals("—", NumberFormatter.format(Float.NaN, 1))
+    }
+
+    @Test
+    fun testFormatInfinity() {
+        assertEquals("—", NumberFormatter.format(Double.POSITIVE_INFINITY, 2))
+        assertEquals("—", NumberFormatter.format(Double.NEGATIVE_INFINITY, 2))
+        assertEquals("—", NumberFormatter.format(Float.POSITIVE_INFINITY, 1))
+    }
 }

core/data/src/commonMain/kotlin/org/meshtastic/core/data/manager/StoreForwardPacketHandlerImpl.kt

@@ -51,7 +51,13 @@ class StoreForwardPacketHandlerImpl(
 
     override fun handleStoreAndForward(packet: MeshPacket, dataPacket: DataPacket, myNodeNum: Int) {
         val payload = packet.decoded?.payload ?: return
-        val u = StoreAndForward.ADAPTER.decode(payload)
+        val u =
+            try {
+                StoreAndForward.ADAPTER.decode(payload)
+            } catch (e: IOException) {
+                Logger.e(e) { "Failed to parse StoreAndForward packet" }
+                return
+            }
         handleReceivedStoreAndForward(dataPacket, u, myNodeNum)
     }
 

core/data/src/jvmTest/kotlin/org/meshtastic/core/data/manager/StoreForwardPacketHandlerImplTest.kt

@@ -338,4 +338,18 @@ class StoreForwardPacketHandlerImplTest {
 
         verifySuspend { packetRepository.updateSFPPStatus(any(), any(), any(), any(), any(), any(), any()) }
     }
+
+    // ---------- Legacy S&F: malformed proto ----------
+
+    @Test
+    fun `handleStoreAndForward with malformed payload does not crash`() = testScope.runTest {
+        val malformedPayload = ByteString.of(0xFF.toByte(), 0xFE.toByte(), 0x07, 0x0E)
+        val packet =
+            MeshPacket(from = 999, decoded = Data(portnum = PortNum.STORE_FORWARD_APP, payload = malformedPayload))
+        val dataPacket = makeDataPacket(999)
+
+        // Should not throw — the handler catches the IOException from proto decoding
+        handler.handleStoreAndForward(packet, dataPacket, myNodeNum)
+        advanceUntilIdle()
+    }
 }

core/network/src/androidMain/kotlin/org/meshtastic/core/network/repository/SerialConnectionImpl.kt

@@ -86,14 +86,23 @@ internal class SerialConnectionImpl(
         }
 
         port.open(usbDeviceConnection)
-        port.setParameters(115200, UsbSerialPort.DATABITS_8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE)
+        try {
+            port.setParameters(115200, UsbSerialPort.DATABITS_8, UsbSerialPort.STOPBITS_1, UsbSerialPort.PARITY_NONE)
 
-        // Assert DTR/RTS so native USB-CDC firmware (RAK4631 / nRF52840) recognizes the host as
-        // present and starts its serial-side Meshtastic protocol. Empirically, omitting these
-        // signals causes the firmware to never respond to WAKE_BYTES, stalling the handshake at
-        // Stage 1. Bridge-chip boards (CH340, CP210x, FTDI) tolerate the assertion.
-        port.dtr = true
-        port.rts = true
+            // Assert DTR/RTS so native USB-CDC firmware (RAK4631 / nRF52840) recognizes the host as
+            // present and starts its serial-side Meshtastic protocol. Empirically, omitting these
+            // signals causes the firmware to never respond to WAKE_BYTES, stalling the handshake at
+            // Stage 1. Bridge-chip boards (CH340, CP210x, FTDI) tolerate the assertion.
+            port.dtr = true
+            port.rts = true
+        } catch (e: java.io.IOException) {
+            Logger.w(e) { "USB control transfer failed during port setup — device may have disconnected" }
+            closed.set(true)
+            ignoreException(silent = true) { port.close() }
+            closedLatch.countDown()
+            listener.onDisconnected(e)
+            return
+        }
 
         Logger.d { "Starting serial reader thread" }
         val io =