refactor(ping-service): remove CORS configuration from code, restructure modules, and update Gradle dependencies

Migrated CORS settings from code to `application.yaml` for better separation of concerns. Integrated `ping-api` into the new `contracts` module for improved modularity. Updated Gradle scripts and dependencies accordingly to reflect the new project structure.

backend/services/ping/ping-api/build.gradle.kts

@@ -1,39 +0,0 @@
-plugins {
-    alias(libs.plugins.kotlinMultiplatform)
-    alias(libs.plugins.kotlinSerialization)
-}
-
-group = "at.mocode"
-version = "1.0.0"
-
-kotlin {
-    // Toolchain is now handled centrally in the root build.gradle.kts
-
-    // JVM target for backend usage
-    jvm()
-
-    // JS target for frontend usage (Compose/Browser)
-    js {
-        browser()
-        // no need for binaries.executable() in a library
-    }
-
-    // Wasm enabled by default
-    @OptIn(org.jetbrains.kotlin.gradle.ExperimentalWasmDsl::class)
-    wasmJs {
-        browser()
-    }
-
-    sourceSets {
-        commonMain {
-            dependencies {
-                implementation(libs.kotlinx.serialization.json)
-            }
-        }
-        commonTest {
-            dependencies {
-                implementation(libs.kotlin.test)
-            }
-        }
-    }
-}

backend/services/ping/ping-api/src/commonMain/kotlin/at/mocode/ping/api/PingApi.kt

@@ -1,7 +0,0 @@
-package at.mocode.ping.api
-
-interface PingApi {
-    suspend fun simplePing(): PingResponse
-    suspend fun enhancedPing(simulate: Boolean = false): EnhancedPingResponse
-    suspend fun healthCheck(): HealthResponse
-}

backend/services/ping/ping-api/src/commonMain/kotlin/at/mocode/ping/api/PingData.kt

@@ -1,23 +0,0 @@
-package at.mocode.ping.api
-
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class PingResponse(val status: String, val timestamp: String, val service: String)
-
-@Serializable
-data class EnhancedPingResponse(
-    val status: String,
-    val timestamp: String,
-    val service: String,
-    val circuitBreakerState: String,
-    val responseTime: Long
-)
-
-@Serializable
-data class HealthResponse(
-    val status: String,
-    val timestamp: String,
-    val service: String,
-    val healthy: Boolean
-)

backend/services/ping/ping-service/build.gradle.kts

@@ -14,7 +14,7 @@ kotlin {
 
 dependencies {
     // === Project Dependencies ===
-    implementation(projects.backend.services.ping.pingApi)
+    implementation(projects.contracts.pingApi)
     implementation(projects.platform.platformDependencies)
     // NEU: Zugriff auf die verschobenen DatabaseUtils
     implementation(projects.backend.infrastructure.persistence)

backend/services/ping/ping-service/src/main/kotlin/at/mocode/ping/PingServiceApplication.kt

@@ -2,33 +2,12 @@ package at.mocode.ping
 
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
-import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.EnableAspectJAutoProxy
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
 
 @SpringBootApplication
 // Scannt explizit alle Sub-Packages (infrastructure, application, domain)
 @EnableAspectJAutoProxy
-class PingServiceApplication {
-
-    @Bean
-    fun corsConfigurer(): WebMvcConfigurer {
-        return object : WebMvcConfigurer {
-            override fun addCorsMappings(registry: org.springframework.web.servlet.config.annotation.CorsRegistry) {
-                registry.addMapping("/**")
-                    .allowedOriginPatterns("http://localhost:*")
-                    .allowedOrigins("http://localhost:8080",
-                        "http://localhost:8083",
-                        "http://localhost:4000"
-                    )
-                    .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
-                    .allowedHeaders("*")
-                    .allowCredentials(true)
-                    .maxAge(3600)
-            }
-        }
-    }
-}
+class PingServiceApplication
 
 fun main(args: Array<String>) {
     runApplication<PingServiceApplication>(*args)

backend/services/ping/ping-service/src/main/resources/application.yaml

@@ -42,6 +42,17 @@ spring:
         health-check-interval: 10s
         instance-id: ${spring.application.name}-${server.port}-${random.uuid}
 
+# CORS-Konfiguration ausgelagert aus dem Code
+web:
+  cors:
+    mappings:
+      "/**":
+        allowed-origin-patterns: "http://localhost:*,http://127.0.0.1:*"
+        allowed-methods: "GET,POST,PUT,DELETE,OPTIONS"
+        allowed-headers: "*"
+        allow-credentials: true
+        max-age: 3600
+
 management:
   endpoints:
     web: