Shared KMP core and UI, switch to Koin

core/common/build.gradle.kts

@@ -0,0 +1,25 @@
+plugins {
+    alias(libs.plugins.kotlin.multiplatform)
+    alias(libs.plugins.android.kotlin.multiplatform.library)
+}
+
+// Shared by the TV (android) and desktop versions: logging, clock, preference files.
+kotlin {
+    android {
+        namespace = "ru.stenfredd.sleepyowl.core.common"
+        compileSdk = 37
+        minSdk = 26
+    }
+    jvm("desktop")
+
+    sourceSets {
+        commonMain.dependencies {
+            api(libs.kotlinx.coroutines.core)
+            api(libs.androidx.datastore.preferences.core)
+        }
+        androidMain.dependencies {
+            api(libs.kotlinx.coroutines.android)
+            implementation(libs.timber)
+        }
+    }
+}