new: add Koin-based DI validation for appModule

shared/build.gradle.kts

@@ -92,6 +92,11 @@ kotlin {
         commonTest.dependencies {
             implementation(libs.kotlin.test)
         }
+        jvmTest.dependencies {
+            // Koin configuration validation
+            implementation(project.dependencies.platform(libs.koin.bom))
+            implementation(libs.koin.test)
+        }
         jsMain.dependencies {
             implementation(libs.wrappers.browser)
         }