refactor: migrate from Hilt to Koin and expand KMP common modules (#4746)

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

core/di/README.md

@@ -1,7 +1,7 @@
 # `:core:di`
 
 ## Overview
-The `:core:di` module defines the core Dagger Hilt modules and provides standard dependencies that are shared across all other modules.
+The `:core:di` module defines the core Koin modules and provides standard dependencies that are shared across all other modules.
 
 ## Key Components
 
@@ -12,7 +12,7 @@ Defines bindings for application-wide singletons like `Application`, `Context`,
 Provides a wrapper for standard Kotlin `CoroutineDispatchers` (`IO`, `Default`, `Main`), allowing for easy mocking in unit tests.
 
 ### 3. `ProcessLifecycle.kt`
-Exposes the application's global process lifecycle as a Hilt binding, enabling components to react to the app entering the foreground or background.
+Exposes the application's global process lifecycle as a Koin binding, enabling components to react to the app entering the foreground or background.
 
 ## Module dependency graph
 

core/di/build.gradle.kts

@@ -15,7 +15,10 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-plugins { alias(libs.plugins.meshtastic.kmp.library) }
+plugins {
+    alias(libs.plugins.meshtastic.kmp.library)
+    id("meshtastic.koin")
+}
 
 kotlin {
     @Suppress("UnstableApiUsage")

core/di/src/commonMain/kotlin/org/meshtastic/core/di/di/CoreDiModule.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2025-2026 Meshtastic LLC
+ * Copyright (c) 2026 Meshtastic LLC
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,10 +14,16 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-package org.meshtastic.core.di
+package org.meshtastic.core.di.di
 
-import javax.inject.Qualifier
+import kotlinx.coroutines.Dispatchers
+import org.koin.core.annotation.Module
+import org.koin.core.annotation.Single
+import org.meshtastic.core.di.CoroutineDispatchers
 
-@Qualifier
-@Retention(AnnotationRetention.BINARY)
-annotation class ProcessLifecycle
+@Module
+class CoreDiModule {
+    @Single
+    fun provideCoroutineDispatchers(): CoroutineDispatchers =
+        CoroutineDispatchers(io = Dispatchers.IO, main = Dispatchers.Main, default = Dispatchers.Default)
+}