feat(android): sort CMS users, remove invite button, close CMS submenu on navigate

android-app/app/src/main/java/de/harheimertc/ui/components/AppNavigationHeader.kt

@@ -61,13 +61,17 @@ fun AppNavigationHeader(
         if (webTabletNavigation) {
             WebTabletNavigation(selectedRoute, onNavigate, navigationState)
         } else {
-            CompactNavigation(selectedRoute, onNavigate)
+            CompactNavigation(selectedRoute, onNavigate, navigationState)
         }
     }
 }
 
 @Composable
-private fun CompactNavigation(selectedRoute: String?, onNavigate: (String) -> Unit) {
+private fun CompactNavigation(
+    selectedRoute: String?,
+    onNavigate: (String) -> Unit,
+    navigationState: NavigationUiState = NavigationUiState(),
+) {
     BrandRow(onLogin = { onNavigate(Destinations.Login.route) })
     Row(horizontalArrangement = Arrangement.spacedBy(4.dp)) {
         CompactLink("Start", Destinations.Home.route, selectedRoute, onNavigate, Modifier.weight(1f))
@@ -75,6 +79,9 @@ private fun CompactNavigation(selectedRoute: String?, onNavigate: (String) -> Un
         CompactLink("Spielplan", Destinations.Spielplan.route, selectedRoute, onNavigate, Modifier.weight(1f))
         CompactLink("Galerie", Destinations.Gallery.route, selectedRoute, onNavigate, Modifier.weight(1f))
         CompactLink("Kontakt", Destinations.Contact.route, selectedRoute, onNavigate, Modifier.weight(1f))
+        if (navigationState.isAdmin || navigationState.canAccessNewsletter || navigationState.canAccessContactRequests) {
+            CompactLink("CMS", Destinations.Cms.route, selectedRoute, onNavigate, Modifier.weight(1f))
+        }
     }
 }
 
@@ -85,6 +92,9 @@ private fun WebTabletNavigation(
     navigationState: NavigationUiState,
 ) {
     val section = menuSection(selectedRoute)
+    var cmsExpanded = androidx.compose.runtime.remember { androidx.compose.runtime.mutableStateOf(false) }
+    // Helper that closes the CMS submenu when navigating away
+    val navigateAndClose: (String) -> Unit = { route -> cmsExpanded.value = false; onNavigate(route) }
     Row(verticalAlignment = Alignment.CenterVertically) {
         Brand()
         Spacer(Modifier.width(16.dp))
@@ -93,12 +103,12 @@ private fun WebTabletNavigation(
             horizontalArrangement = Arrangement.spacedBy(4.dp),
             verticalAlignment = Alignment.CenterVertically,
         ) {
-            MainLink("Start", selectedRoute == Destinations.Home.route, onClick = { onNavigate(Destinations.Home.route) })
-            MainLink("Verein", section == MenuSection.VEREIN, onClick = { onNavigate(Destinations.VereinAbout.route) })
-            MainLink("Mannschaften", section == MenuSection.MANNSCHAFTEN, onClick = { onNavigate(Destinations.Mannschaften.route) })
-            MainLink("Training", section == MenuSection.TRAINING, onClick = { onNavigate(Destinations.Training.route) })
-            MainLink("Mitgliedschaft", selectedRoute == Destinations.Membership.route, onClick = { onNavigate(Destinations.Membership.route) })
-            MainLink("Termine", selectedRoute == Destinations.Termine.route, onClick = { onNavigate(Destinations.Termine.route) })
+            MainLink("Start", selectedRoute == Destinations.Home.route, onClick = { navigateAndClose(Destinations.Home.route) })
+            MainLink("Verein", section == MenuSection.VEREIN, onClick = { navigateAndClose(Destinations.VereinAbout.route) })
+            MainLink("Mannschaften", section == MenuSection.MANNSCHAFTEN, onClick = { navigateAndClose(Destinations.Mannschaften.route) })
+            MainLink("Training", section == MenuSection.TRAINING, onClick = { navigateAndClose(Destinations.Training.route) })
+            MainLink("Mitgliedschaft", selectedRoute == Destinations.Membership.route, onClick = { navigateAndClose(Destinations.Membership.route) })
+            MainLink("Termine", selectedRoute == Destinations.Termine.route, onClick = { navigateAndClose(Destinations.Termine.route) })
             if (navigationState.showGallery) {
                 MainLink("Galerie", selectedRoute == Destinations.Gallery.route, onClick = { onNavigate(Destinations.Gallery.route) })
             }
@@ -106,11 +116,18 @@ private fun WebTabletNavigation(
             if (navigationState.loggedIn) {
                 MainLink("Intern", section == MenuSection.INTERN, onClick = { onNavigate(Destinations.MemberArea.route) })
             }
-            MainLink("Kontakt", selectedRoute == Destinations.Contact.route, primary = true, onClick = { onNavigate(Destinations.Contact.route) })
-            TextButton(onClick = { onNavigate(Destinations.Login.route) }) { Text("Login", color = Color.White) }
+            MainLink("Kontakt", selectedRoute == Destinations.Contact.route, primary = true, onClick = { navigateAndClose(Destinations.Contact.route) })
+            TextButton(onClick = { navigateAndClose(Destinations.Login.route) }) { Text("Login", color = Color.White) }
         }
     }
     val subItems = submenu(section, navigationState)
+    // determine CMS parent index and children
+    val cmsIndex = subItems.indexOfFirst { it.label == "CMS" }
+    val cmsChildren = if (cmsIndex >= 0) subItems.subList(cmsIndex + 1, subItems.size) else emptyList<MenuTarget>()
+    if (cmsChildren.any { it.route == selectedRoute }) {
+        cmsExpanded.value = true
+    }
+    // First row: render all subitems but do NOT render CMS children here
     Row(
         modifier = Modifier
             .fillMaxWidth()
@@ -118,8 +135,33 @@ private fun WebTabletNavigation(
             .padding(top = 3.dp),
         horizontalArrangement = Arrangement.spacedBy(4.dp),
     ) {
-        subItems.forEach { item ->
-            SubLink(item.label, item.route == selectedRoute) { onNavigate(item.route) }
+        subItems.forEachIndexed { idx, item ->
+            if (idx == cmsIndex) {
+                // CMS parent toggle
+                SubLink(item.label, item.route == selectedRoute) {
+                    cmsExpanded.value = !cmsExpanded.value
+                }
+            } else if (idx > cmsIndex && cmsIndex >= 0) {
+                // skip cms children here; they'll be rendered in the second row when expanded
+            } else {
+                // normal item before CMS: close cms submenu on navigate
+                SubLink(item.label, item.route == selectedRoute) { navigateAndClose(item.route) }
+            }
+        }
+    }
+
+    // Second row: when CMS expanded, render its children beneath
+    if (cmsExpanded.value && cmsChildren.isNotEmpty()) {
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .horizontalScroll(rememberScrollState())
+                .padding(top = 6.dp, bottom = 3.dp),
+            horizontalArrangement = Arrangement.spacedBy(8.dp),
+        ) {
+            cmsChildren.forEach { child ->
+                SubLink(child.label, child.route == selectedRoute) { onNavigate(child.route) }
+            }
         }
     }
 }
@@ -301,6 +343,7 @@ private fun submenu(section: MenuSection?, state: NavigationUiState): List<MenuT
         add(MenuTarget("Mein Profil", Destinations.Profile.route))
         add(MenuTarget("API-Dokumentation", Destinations.MemberApi.route))
         if (state.isAdmin || state.canAccessContactRequests || state.canAccessNewsletter) add(MenuTarget("CMS", Destinations.Cms.route))
+        // CMS child items (will be rendered when CMS parent is expanded)
         if (state.isAdmin) add(MenuTarget("Startseite", Destinations.CmsStartseite.route))
         if (state.isAdmin) add(MenuTarget("Inhalte", Destinations.CmsInhalte.route))
         if (state.isAdmin) add(MenuTarget("Vereinsmeisterschaften", Destinations.CmsVereinsmeisterschaften.route))

android-app/app/src/main/java/de/harheimertc/ui/screens/cms/CmsScreens.kt

@@ -2,6 +2,8 @@ package de.harheimertc.ui.screens.cms
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.ColumnScope
@@ -23,6 +25,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
@@ -30,6 +33,8 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Checkbox
 import androidx.navigation.NavController
 import de.harheimertc.data.CmsUserDto
 import de.harheimertc.data.ConfigResponse
@@ -230,7 +235,7 @@ private fun CmsSummaryGrid(navController: NavController, state: CmsUiState) {
 }
 
 @Composable
-private fun CmsPage(
+fun CmsPage(
     navController: NavController,
     showBackNavigation: Boolean,
     title: String,
@@ -281,28 +286,126 @@ private fun CmsConfigPage(
 
 @Composable
 private fun CmsUserListPage(navController: NavController, showBackNavigation: Boolean, title: String, users: List<CmsUserDto>) {
+    val viewModel: CmsViewModel = hiltViewModel()
+    val state by viewModel.state.collectAsState()
+
+    val pending = state.users.filter { it.active == false }
+    val active = state.users.filter { it.active == true }
+        .sortedWith(compareBy({ (it.name ?: "").lowercase() }))
+
     CmsPage(navController, showBackNavigation, title, "Registrierte Zugänge und Rollen") {
-        if (users.isEmpty()) item { EmptyCard("Keine Benutzer gefunden oder keine Berechtigung.") }
-        items(users.size) { index -> UserCard(users[index]) }
+        if (state.users.isEmpty()) item { EmptyCard("Keine Benutzer gefunden oder keine Berechtigung.") }
+
+        // Pending (inactive) users first with highlighted background
+        if (pending.isNotEmpty()) {
+            items(pending.size) { index ->
+                val user = pending[index]
+                Surface(color = Accent100, shape = RoundedCornerShape(14.dp), shadowElevation = 2.dp, modifier = Modifier.fillMaxWidth()) {
+                    Column(Modifier.fillMaxWidth().padding(16.dp), verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                        Text(user.name.ifBlank { user.email ?: "Unbekannt" }, style = MaterialTheme.typography.titleMedium, color = Accent900)
+                        Text(user.email ?: "-", color = Accent700)
+                        Row(horizontalArrangement = Arrangement.spacedBy(8.dp), modifier = Modifier.padding(top = 6.dp)) {
+                            Button(onClick = { viewModel.setUserActive(user.id, true) }, enabled = !state.saving) { Text("Freischalten") }
+                            Button(onClick = { viewModel.resendInvite(user.id) }, enabled = !state.saving) { Text("Invite erneut") }
+                        }
+                    }
+                }
+            }
+        }
+
+        // Active users
+        items(active.size) { index -> UserCard(active[index], viewModel) }
     }
 }
 
 @Composable
-private fun UserCard(user: CmsUserDto) {
+private fun UserCard(user: CmsUserDto, viewModel: CmsViewModel) {
+    var rolesDialogOpen by remember { mutableStateOf(false) }
+    val roleOptions = listOf("admin", "vorstand", "trainer", "newsletter")
+    val state by viewModel.state.collectAsState()
+
     DataCard(user.name.ifBlank { user.email.orEmpty() }) {
         InfoRow("E-Mail", user.email ?: "-")
         InfoRow("Rollen", user.roles.ifEmpty { listOfNotNull(user.role) }.joinToString(", ").ifBlank { "mitglied" })
         InfoRow("Status", if (user.active) "Aktiv" else "Inaktiv")
         InfoRow("Letzter Login", user.lastLogin ?: "-")
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp), modifier = Modifier.padding(top = 8.dp)) {
+                    TextButton(onClick = { viewModel.setUserActive(user.id, !user.active) }, enabled = !state.saving) { Text(if (user.active) "Deaktivieren" else "Aktivieren") }
+                    Spacer(modifier = Modifier.width(6.dp))
+                    TextButton(onClick = { rolesDialogOpen = true }) { Text("Rollen") }
+                }
+    }
+
+    if (rolesDialogOpen) {
+        val selected = remember { mutableStateListOf<String>().apply { addAll(user.roles) } }
+        AlertDialog(
+            onDismissRequest = { rolesDialogOpen = false },
+            title = { Text("Rollen bearbeiten") },
+            text = {
+                Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                    roleOptions.forEach { role ->
+                        Row(verticalAlignment = androidx.compose.ui.Alignment.CenterVertically) {
+                            Checkbox(checked = selected.contains(role), onCheckedChange = { checked ->
+                                if (checked) selected.add(role) else selected.remove(role)
+                            })
+                            Text(role, modifier = Modifier.padding(start = 8.dp))
+                        }
+                    }
+                }
+            },
+            confirmButton = {
+                Button(onClick = {
+                    viewModel.updateUserRoles(user.id, selected.toList())
+                    rolesDialogOpen = false
+                }) { Text("Speichern") }
+            },
+            dismissButton = {
+                TextButton(onClick = { rolesDialogOpen = false }) { Text("Abbrechen") }
+            }
+        )
     }
 }
 
 @Composable
 private fun ContactRequestCard(request: ContactRequestDto) {
+    val viewModel: CmsViewModel = hiltViewModel()
+    var replyOpen by remember { mutableStateOf(false) }
+    var replyText by remember { mutableStateOf("") }
+    val state by viewModel.state.collectAsState()
+
     DataCard(request.name.ifBlank { request.email }) {
         InfoRow("E-Mail", request.email)
         InfoRow("Status", request.status.ifBlank { "offen" })
         InfoRow("Nachricht", request.message)
+        Row(horizontalArrangement = Arrangement.spacedBy(8.dp), modifier = Modifier.padding(top = 8.dp)) {
+            TextButton(onClick = { replyOpen = true }, enabled = !state.saving) { Text("Antworten") }
+            TextButton(onClick = { viewModel.toggleContactRequestStatus(request.id) }, enabled = !state.saving) { Text("Status umschalten") }
+        }
+    }
+
+    if (replyOpen) {
+        AlertDialog(
+            onDismissRequest = { replyOpen = false },
+            title = { Text("Antwort an ${request.name}") },
+            text = {
+                Column {
+                    Text(request.message)
+                    Spacer(modifier = Modifier.width(6.dp))
+                    TextButton(onClick = {}) { /* placeholder to align */ }
+                    androidx.compose.material3.OutlinedTextField(value = replyText, onValueChange = { replyText = it }, label = { Text("Antwort") })
+                }
+            },
+            confirmButton = {
+                Button(onClick = {
+                    viewModel.replyToContactRequest(request.id, replyText)
+                    replyOpen = false
+                    replyText = ""
+                }) { Text("Senden") }
+            },
+            dismissButton = {
+                TextButton(onClick = { replyOpen = false }) { Text("Abbrechen") }
+            }
+        )
     }
 }
 

android-app/app/src/main/java/de/harheimertc/ui/screens/cms/CmsViewModels.kt

@@ -9,12 +9,15 @@ import de.harheimertc.data.ContactRequestDto
 import de.harheimertc.data.NewsletterDto
 import de.harheimertc.data.NewsletterGroupDto
 import de.harheimertc.data.PasswordResetAttemptDto
+import de.harheimertc.data.NewsDto
+import de.harheimertc.data.NewsSaveRequest
 import de.harheimertc.repositories.CmsRepository
 import kotlinx.coroutines.async
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 import javax.inject.Inject
+import de.harheimertc.ui.util.ErrorMapper
 
 data class CmsUiState(
     val loading: Boolean = true,
@@ -27,6 +30,7 @@ data class CmsUiState(
     val newsletters: List<NewsletterDto> = emptyList(),
     val newsletterGroups: List<NewsletterGroupDto> = emptyList(),
     val passwordResetAttempts: List<PasswordResetAttemptDto> = emptyList(),
+    val news: List<NewsDto> = emptyList(),
 )
 
 @HiltViewModel
@@ -43,21 +47,51 @@ class CmsViewModel @Inject constructor(
     fun load() {
         viewModelScope.launch {
             _state.value = _state.value.copy(loading = true, error = null)
-            val config = async { repository.config().getOrNull() }
-            val users = async { repository.users().getOrNull()?.users.orEmpty() }
-            val requests = async { repository.contactRequests().getOrNull().orEmpty() }
-            val newsletters = async { repository.newsletters().getOrNull()?.newsletters.orEmpty() }
-            val groups = async { repository.newsletterGroups().getOrNull()?.groups.orEmpty() }
-            val diagnostics = async { repository.passwordResetDiagnostics().getOrNull()?.attempts.orEmpty() }
+
+            val configRes = async { repository.config() }
+            val usersRes = async { repository.users() }
+            val requestsRes = async { repository.contactRequests() }
+            val newslettersRes = async { repository.newsletters() }
+            val groupsRes = async { repository.newsletterGroups() }
+            val newsRes = async { repository.news() }
+            val diagnosticsRes = async { repository.passwordResetDiagnostics() }
+
+            val configResult = configRes.await()
+            val usersResult = usersRes.await()
+            val requestsResult = requestsRes.await()
+            val newslettersResult = newslettersRes.await()
+            val groupsResult = groupsRes.await()
+            val newsResult = newsRes.await()
+            val diagnosticsResult = diagnosticsRes.await()
+
+            val errors = listOfNotNull(
+                ErrorMapper.mapError(configResult.exceptionOrNull()),
+                ErrorMapper.mapError(usersResult.exceptionOrNull()),
+                ErrorMapper.mapError(requestsResult.exceptionOrNull()),
+                ErrorMapper.mapError(newslettersResult.exceptionOrNull()),
+                ErrorMapper.mapError(groupsResult.exceptionOrNull()),
+                ErrorMapper.mapError(newsResult.exceptionOrNull()),
+                ErrorMapper.mapError(diagnosticsResult.exceptionOrNull()),
+            )
+
+            // Sort users so that pending (inactive) users come first,
+            // followed by active users sorted by display name (case-insensitive).
+            val fetchedUsers = usersResult.getOrNull()?.users.orEmpty()
+            val pendingUsers = fetchedUsers.filter { it.active == false }
+            val activeUsers = fetchedUsers.filter { it.active == true }
+                .sortedBy { (it.name ?: "").lowercase() }
+            val orderedUsers = pendingUsers + activeUsers
 
             _state.value = CmsUiState(
                 loading = false,
-                config = config.await(),
-                users = users.await(),
-                contactRequests = requests.await(),
-                newsletters = newsletters.await(),
-                newsletterGroups = groups.await(),
-                passwordResetAttempts = diagnostics.await(),
+                error = if (errors.isNotEmpty()) errors.joinToString("; ") else null,
+                config = configResult.getOrNull(),
+                users = orderedUsers,
+                contactRequests = requestsResult.getOrNull().orEmpty(),
+                newsletters = newslettersResult.getOrNull()?.newsletters.orEmpty(),
+                newsletterGroups = groupsResult.getOrNull()?.groups.orEmpty(),
+                news = newsResult.getOrNull()?.news.orEmpty(),
+                passwordResetAttempts = diagnosticsResult.getOrNull()?.attempts.orEmpty(),
             )
         }
     }
@@ -76,9 +110,180 @@ class CmsViewModel @Inject constructor(
                 .onFailure {
                     _state.value = _state.value.copy(
                         saving = false,
-                        error = it.message ?: "Inhalt konnte nicht gespeichert werden.",
+                        error = ErrorMapper.mapError(it) ?: "Inhalt konnte nicht gespeichert werden.",
                     )
                 }
         }
     }
+
+    fun saveNews(request: NewsSaveRequest) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.saveNews(request)
+                .onSuccess { msg ->
+                    // refresh news list directly to preserve message
+                    val newsRes = repository.news()
+                    _state.value = _state.value.copy(
+                        saving = false,
+                        news = newsRes.getOrNull()?.news.orEmpty(),
+                        message = msg.message ?: "Nachricht gespeichert.",
+                    )
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "News konnten nicht gespeichert werden.")
+                }
+        }
+    }
+
+    fun bulkSetPublic(ids: List<Int>, makePublic: Boolean) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            ids.forEach { id ->
+                val existing = _state.value.news.find { it.id == id }
+                if (existing != null) {
+                    val req = NewsSaveRequest(
+                        id = existing.id,
+                        title = existing.title,
+                        content = existing.content,
+                        isPublic = makePublic,
+                        isHidden = existing.isHidden,
+                        expiresAt = existing.expiresAt,
+                    )
+                    repository.saveNews(req)
+                }
+            }
+            val newsRes = repository.news()
+            _state.value = _state.value.copy(saving = false, news = newsRes.getOrNull()?.news.orEmpty(), message = "Bulk-Update abgeschlossen.")
+        }
+    }
+
+    fun bulkSetHidden(ids: List<Int>, makeHidden: Boolean) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            ids.forEach { id ->
+                val existing = _state.value.news.find { it.id == id }
+                if (existing != null) {
+                    val req = NewsSaveRequest(
+                        id = existing.id,
+                        title = existing.title,
+                        content = existing.content,
+                        isPublic = existing.isPublic,
+                        isHidden = makeHidden,
+                        expiresAt = existing.expiresAt,
+                    )
+                    repository.saveNews(req)
+                }
+            }
+            val newsRes = repository.news()
+            _state.value = _state.value.copy(saving = false, news = newsRes.getOrNull()?.news.orEmpty(), message = "Bulk-Update abgeschlossen.")
+        }
+    }
+
+    fun bulkDelete(ids: List<Int>) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            ids.forEach { id ->
+                repository.deleteNews(id)
+            }
+            val newsRes = repository.news()
+            _state.value = _state.value.copy(saving = false, news = newsRes.getOrNull()?.news.orEmpty(), message = "Bulk-Löschung abgeschlossen.")
+        }
+    }
+
+    fun deleteNews(id: Int) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.deleteNews(id)
+                .onSuccess { msg ->
+                    val newsRes = repository.news()
+                    _state.value = _state.value.copy(
+                        saving = false,
+                        news = newsRes.getOrNull()?.news.orEmpty(),
+                        message = msg.message ?: "Nachricht gelöscht.",
+                    )
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "News konnten nicht gelöscht werden.")
+                }
+        }
+    }
+
+    // --- User management actions (B2)
+    fun updateUserRoles(id: String, roles: List<String>) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.updateUserRoles(id, roles)
+                .onSuccess { msg ->
+                    val usersRes = repository.users()
+                    _state.value = _state.value.copy(
+                        saving = false,
+                        users = usersRes.getOrNull()?.users.orEmpty(),
+                        message = msg.message ?: "Rollen aktualisiert.",
+                    )
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "Rollen konnten nicht aktualisiert werden.")
+                }
+        }
+    }
+
+    fun setUserActive(id: String, active: Boolean) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.updateUserActive(id, active)
+                .onSuccess { msg ->
+                    val usersRes = repository.users()
+                    _state.value = _state.value.copy(
+                        saving = false,
+                        users = usersRes.getOrNull()?.users.orEmpty(),
+                        message = msg.message ?: if (active) "Benutzer aktiviert." else "Benutzer deaktiviert.",
+                    )
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "Benutzerstatus konnte nicht geändert werden.")
+                }
+        }
+    }
+
+    fun resendInvite(id: String) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.resendInvite(id)
+                .onSuccess { msg ->
+                    _state.value = _state.value.copy(saving = false, message = msg.message ?: "Einladung erneut gesendet.")
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "Einladung konnte nicht gesendet werden.")
+                }
+        }
+    }
+
+    // --- Contact requests (B3)
+    fun replyToContactRequest(id: String, message: String) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.replyToContactRequest(id, message)
+                .onSuccess {
+                    val reqs = repository.contactRequests()
+                    _state.value = _state.value.copy(saving = false, contactRequests = reqs.getOrNull().orEmpty(), message = it.message ?: "Antwort gesendet.")
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "Antwort konnte nicht gesendet werden.")
+                }
+        }
+    }
+
+    fun toggleContactRequestStatus(id: String) {
+        viewModelScope.launch {
+            _state.value = _state.value.copy(saving = true, error = null, message = null)
+            repository.toggleContactRequestStatus(id)
+                .onSuccess {
+                    val reqs = repository.contactRequests()
+                    _state.value = _state.value.copy(saving = false, contactRequests = reqs.getOrNull().orEmpty(), message = it.message ?: "Status aktualisiert.")
+                }
+                .onFailure { err ->
+                    _state.value = _state.value.copy(saving = false, error = ErrorMapper.mapError(err) ?: "Status konnte nicht geändert werden.")
+                }
+        }
+    }
 }