Remove domain models and services related to Abteilung, AbteilungsRegelService, and Bewerb: cleanup unnecessary entities, validation logic, and tests across backend modules.

contracts/ping-api/build.gradle.kts

@@ -1,3 +1,7 @@
+@file:OptIn(ExperimentalWasmDsl::class)
+
+import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
+
 plugins {
   alias(libs.plugins.kotlinMultiplatform)
   alias(libs.plugins.kotlinSerialization)
@@ -7,11 +11,10 @@ group = "at.mocode"
 version = "1.0.0"
 
 kotlin {
-  // JVM target for backend usage
   jvm()
 
-  // JS target for frontend usage (Compose/Browser)
-  js {
+  js(IR) {
+    binaries.library()
     browser {
       testTask {
         enabled = false
@@ -19,23 +22,24 @@ kotlin {
     }
   }
 
-  // Wasm enabled by default
-  @OptIn(org.jetbrains.kotlin.gradle.ExperimentalWasmDsl::class)
   wasmJs {
-    browser()
+    binaries.library()
+    browser {
+      testTask {
+        enabled = false
+      }
+    }
   }
 
   sourceSets {
-    commonMain {
-      dependencies {
-        api(projects.core.coreDomain) // Changed from implementation to api to export Syncable
-        implementation(libs.kotlinx.serialization.json)
-      }
+    commonMain.dependencies {
+      api(projects.core.coreDomain)
+      implementation(projects.core.coreUtils)
+      implementation(libs.kotlinx.serialization.json)
     }
-    commonTest {
-      dependencies {
-        implementation(libs.kotlin.test)
-      }
+    commonTest.dependencies {
+      implementation(libs.kotlin.test)
     }
+
   }
 }