refactoring:

Ein neues Kotlin-Multiplattform-Mitgliedermodul wurde bereitgestellt, das clientseitige API-Aufrufe, Benutzeroberfläche und Navigation in die Host-Anwendung integriert. Der Build wurde durch die Entkopplung von Backend-Mitgliedermodulen stabilisiert, und alle Tests wurden erfolgreich abgeschlossen. Die Client-Funktionen erfolgen über REST-Aufrufe an das Gateway; die Backend-Integration wird in einer späteren Phase implementiert.

clients/app/build.gradle.kts

@@ -77,6 +77,7 @@ kotlin {
             implementation(project(":clients:shared:common-ui"))
             implementation(project(":clients:shared:navigation"))
             implementation(project(":clients:ping-feature"))
+            implementation(project(":clients:members-feature"))
 
             // Compose Multiplatform
             implementation(compose.runtime)

clients/app/src/commonMain/kotlin/MainApp.kt

@@ -3,6 +3,9 @@ import androidx.compose.runtime.*
 import androidx.compose.foundation.layout.*
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import at.mocode.clients.membersfeature.ProfileScreen
+import at.mocode.clients.membersfeature.ProfileViewModel
+import at.mocode.clients.shared.navigation.AppScreen
 
 @Composable
 fun MainApp() {
@@ -11,13 +14,20 @@ fun MainApp() {
             modifier = Modifier.fillMaxSize(),
             color = MaterialTheme.colorScheme.background
         ) {
-            DevelopmentScreen()
+            var currentScreen by remember { mutableStateOf<AppScreen>(AppScreen.Home) }
+
+            when (currentScreen) {
+                is AppScreen.Home -> DevelopmentScreen(onOpenProfile = { currentScreen = AppScreen.Profile })
+                is AppScreen.Login -> DevelopmentScreen(onOpenProfile = { currentScreen = AppScreen.Profile })
+                is AppScreen.Ping -> DevelopmentScreen(onOpenProfile = { currentScreen = AppScreen.Profile })
+                is AppScreen.Profile -> ProfileScreen(viewModel = remember { ProfileViewModel() })
+            }
         }
     }
 }
 
 @Composable
-fun DevelopmentScreen() {
+fun DevelopmentScreen(onOpenProfile: () -> Unit) {
     Column(
         modifier = Modifier
             .fillMaxSize()
@@ -47,6 +57,9 @@ fun DevelopmentScreen() {
                     Button(onClick = { testStatus = "Testing Ping Service..." }) {
                         Text("Test Ping Service")
                     }
+                    Button(onClick = onOpenProfile) {
+                        Text("Open Profile")
+                    }
                 }
 
                 Text("Status: $testStatus")

clients/members-feature/build.gradle.kts

@@ -0,0 +1,87 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
+plugins {
+    alias(libs.plugins.kotlinMultiplatform)
+    alias(libs.plugins.composeMultiplatform)
+    alias(libs.plugins.composeCompiler)
+    alias(libs.plugins.kotlinSerialization)
+}
+
+group = "at.mocode.clients"
+version = "1.0.0"
+
+kotlin {
+    val enableWasm = providers.gradleProperty("enableWasm").orNull == "true"
+
+    jvmToolchain(21)
+
+    jvm()
+
+    js {
+        browser {
+            testTask { enabled = false }
+        }
+    }
+
+    if (enableWasm) {
+        @OptIn(org.jetbrains.kotlin.gradle.ExperimentalWasmDsl::class)
+        wasmJs { browser() }
+    }
+
+    sourceSets {
+        commonMain.dependencies {
+            // UI Kit
+            implementation(project(":clients:shared:common-ui"))
+            // Shared config/utilities
+            implementation(project(":clients:shared"))
+            // Authentication helpers (token + authenticated client)
+            implementation(project(":clients:auth-feature"))
+
+            // Compose
+            implementation(compose.runtime)
+            implementation(compose.foundation)
+            implementation(compose.material3)
+            implementation(compose.ui)
+            implementation(compose.components.resources)
+            implementation(compose.materialIconsExtended)
+
+            // ViewModel lifecycle + compose helpers
+            implementation(libs.bundles.compose.common)
+
+            // HTTP + Kotlinx
+            implementation(libs.bundles.ktor.client.common)
+            implementation(libs.bundles.kotlinx.core)
+        }
+
+        commonTest.dependencies {
+            implementation(libs.kotlin.test)
+            implementation(libs.kotlinx.coroutines.test)
+            implementation(libs.ktor.client.mock)
+        }
+
+        jvmMain.dependencies {
+            implementation(libs.ktor.client.cio)
+        }
+
+        jsMain.dependencies {
+            implementation(libs.ktor.client.js)
+        }
+
+        if (enableWasm) {
+            val wasmJsMain = getByName("wasmJsMain")
+            wasmJsMain.dependencies {
+                implementation(libs.ktor.client.js)
+                implementation(compose.runtime)
+                implementation(compose.foundation)
+                implementation(compose.material3)
+            }
+        }
+    }
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
+    compilerOptions {
+        jvmTarget.set(JvmTarget.JVM_21)
+        freeCompilerArgs.addAll("-opt-in=kotlin.RequiresOptIn")
+    }
+}

clients/members-feature/src/commonMain/kotlin/at/mocode/clients/membersfeature/MembersApiClient.kt

@@ -0,0 +1,21 @@
+package at.mocode.clients.membersfeature
+
+import at.mocode.clients.authfeature.AuthenticatedHttpClient
+import at.mocode.clients.shared.AppConfig
+import at.mocode.clients.membersfeature.model.MemberProfile
+import io.ktor.client.call.*
+import io.ktor.client.request.*
+import at.mocode.clients.authfeature.AuthenticatedHttpClient.addAuthHeader
+
+class MembersApiClient(
+    private val baseUrl: String = AppConfig.GATEWAY_URL
+) {
+    private val client = AuthenticatedHttpClient.create()
+
+    suspend fun getMyProfile(): MemberProfile {
+        // Erwarteter Endpoint: GET /api/members/me
+        return client.get("$baseUrl/api/members/me") {
+            addAuthHeader()
+        }.body()
+    }
+}

clients/members-feature/src/commonMain/kotlin/at/mocode/clients/membersfeature/ProfileScreen.kt

@@ -0,0 +1,63 @@
+package at.mocode.clients.membersfeature
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun ProfileScreen(viewModel: ProfileViewModel) {
+    val state by viewModel.uiState.collectAsState()
+
+    LaunchedEffect(Unit) {
+        viewModel.loadProfile()
+    }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(16.dp),
+        verticalArrangement = Arrangement.spacedBy(16.dp)
+    ) {
+        Text(text = "👤 Mein Profil", style = MaterialTheme.typography.headlineSmall)
+
+        if (state.isLoading) {
+            Box(modifier = Modifier.fillMaxWidth(), contentAlignment = Alignment.Center) {
+                CircularProgressIndicator()
+            }
+        }
+
+        state.errorMessage?.let { error ->
+            Card(colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.errorContainer)) {
+                Column(modifier = Modifier.padding(16.dp)) {
+                    Text("Fehler", style = MaterialTheme.typography.titleMedium)
+                    Spacer(Modifier.height(8.dp))
+                    Text(error)
+                    Spacer(Modifier.height(8.dp))
+                    Button(onClick = { viewModel.clearError() }) { Text("Schließen") }
+                }
+            }
+        }
+
+        state.profile?.let { profile ->
+            Card {
+                Column(modifier = Modifier.padding(16.dp), verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                    Text(text = profile.fullName.ifBlank { "Unbekannt" }, style = MaterialTheme.typography.titleLarge)
+                    profile.username?.let { Text("Benutzername: $it") }
+                    profile.email?.let { Text("E-Mail: $it") }
+                    if (profile.roles.isNotEmpty()) {
+                        Text("Rollen: ${profile.roles.joinToString(", ")}")
+                    }
+                }
+            }
+        }
+
+        Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+            Button(onClick = { viewModel.loadProfile() }, enabled = !state.isLoading) {
+                Text("Neu laden")
+            }
+        }
+    }
+}

clients/members-feature/src/commonMain/kotlin/at/mocode/clients/membersfeature/ProfileViewModel.kt

@@ -0,0 +1,42 @@
+package at.mocode.clients.membersfeature
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import at.mocode.clients.membersfeature.model.MemberProfile
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+
+data class ProfileUiState(
+    val isLoading: Boolean = false,
+    val profile: MemberProfile? = null,
+    val errorMessage: String? = null
+)
+
+class ProfileViewModel(
+    private val api: MembersApiClient = MembersApiClient()
+) : ViewModel() {
+
+    private val _uiState = MutableStateFlow(ProfileUiState())
+    val uiState: StateFlow<ProfileUiState> = _uiState.asStateFlow()
+
+    fun loadProfile() {
+        _uiState.value = _uiState.value.copy(isLoading = true, errorMessage = null)
+        viewModelScope.launch {
+            try {
+                val profile = api.getMyProfile()
+                _uiState.value = ProfileUiState(isLoading = false, profile = profile)
+            } catch (e: Exception) {
+                _uiState.value = ProfileUiState(
+                    isLoading = false,
+                    errorMessage = e.message ?: "Profil konnte nicht geladen werden"
+                )
+            }
+        }
+    }
+
+    fun clearError() {
+        _uiState.value = _uiState.value.copy(errorMessage = null)
+    }
+}

clients/members-feature/src/commonMain/kotlin/at/mocode/clients/membersfeature/model/MemberProfile.kt

@@ -0,0 +1,16 @@
+package at.mocode.clients.membersfeature.model
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class MemberProfile(
+    val id: String? = null,
+    val username: String? = null,
+    val email: String? = null,
+    val firstName: String? = null,
+    val lastName: String? = null,
+    val roles: List<String> = emptyList()
+) {
+    val fullName: String
+        get() = listOfNotNull(firstName, lastName).joinToString(" ").ifBlank { username ?: "" }
+}

clients/shared/navigation/src/commonMain/kotlin/at/mocode/clients/shared/navigation/AppScreen.kt

@@ -4,4 +4,5 @@ sealed class AppScreen {
     data object Home : AppScreen()
     data object Login : AppScreen()
     data object Ping : AppScreen()
+    data object Profile : AppScreen()
 }