refactor: remove dead deps + add Compose stability annotations

- Remove unused feature/node → feature/map dependency (nothing imported)
- Add @Immutable to RadioConfigState, DiscoveredDevices, DeviceListEntry
  to prevent unnecessary Compose recompositions from unstable inference

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

feature/connections/src/commonMain/kotlin/org/meshtastic/feature/connections/model/DeviceListEntry.kt

@@ -25,6 +25,7 @@ import org.meshtastic.core.model.util.anonymize
 interface UsbDeviceData
 
 /** A sealed class representing the different types of devices that can be displayed in the connections list. */
+@androidx.compose.runtime.Immutable
 sealed class DeviceListEntry(
     open val name: String,
     open val fullAddress: String,

feature/connections/src/commonMain/kotlin/org/meshtastic/feature/connections/model/DiscoveredDevices.kt

@@ -19,6 +19,7 @@ package org.meshtastic.feature.connections.model
 import kotlinx.coroutines.flow.Flow
 import org.meshtastic.core.network.repository.DiscoveredService
 
+@androidx.compose.runtime.Immutable
 data class DiscoveredDevices(
     val bleDevices: List<DeviceListEntry> = emptyList(),
     val usbDevices: List<DeviceListEntry> = emptyList(),

feature/node/build.gradle.kts

@@ -42,7 +42,6 @@ kotlin {
             implementation(projects.core.resources)
             implementation(projects.core.ui)
             implementation(projects.core.di)
-            implementation(projects.feature.map)
 
             implementation(libs.jetbrains.navigation3.ui)
             implementation(libs.markdown.renderer)

feature/settings/src/commonMain/kotlin/org/meshtastic/feature/settings/radio/RadioConfigViewModel.kt

@@ -82,6 +82,7 @@ import org.meshtastic.proto.ModuleConfig
 import org.meshtastic.proto.User
 
 /** Data class that represents the current RadioConfig state. */
+@androidx.compose.runtime.Immutable
 data class RadioConfigState(
     val isLocal: Boolean = false,
     val connected: Boolean = false,