chore: erweitere Veranstaltungs-Wizard um Ansprechperson-Anzeige, verbessere Fehlerhandling bei fehlenden Stammdaten und implementiere MsStringDropdown

Signed-off-by: StefanMoCoAt <stefan.mo.co@gmail.com>

frontend/core/design-system/src/commonMain/kotlin/at/mocode/frontend/core/designsystem/components/MsStringDropdown.kt

@@ -0,0 +1,94 @@
+package at.mocode.frontend.core.designsystem.components
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.key.*
+import androidx.compose.ui.unit.dp
+
+/**
+ * Ein generischer Dropdown zur Auswahl von Strings (z. B. Druckernamen).
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MsStringDropdown(
+  label: String,
+  options: List<String>,
+  selectedOption: String,
+  onOptionSelected: (String) -> Unit,
+  modifier: Modifier = Modifier,
+  placeholder: String = "",
+  enabled: Boolean = true,
+  isError: Boolean = false,
+  errorMessage: String? = null
+) {
+  var expanded by remember { mutableStateOf(false) }
+
+  Column(modifier = modifier) {
+    ExposedDropdownMenuBox(
+      expanded = expanded,
+      onExpandedChange = { if (enabled) expanded = it }
+    ) {
+      OutlinedTextField(
+        value = selectedOption,
+        onValueChange = {},
+        readOnly = true,
+        label = { Text(label, style = MaterialTheme.typography.bodySmall) },
+        placeholder = { Text(placeholder, style = MaterialTheme.typography.bodySmall) },
+        trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
+        colors = ExposedDropdownMenuDefaults.outlinedTextFieldColors(),
+        modifier = Modifier
+          .menuAnchor(ExposedDropdownMenuAnchorType.PrimaryEditable, enabled)
+          .fillMaxWidth()
+          .onKeyEvent {
+            if (it.key == Key.Enter || it.key == Key.DirectionCenter) {
+              if (it.type == KeyEventType.KeyUp) {
+                expanded = !expanded
+              }
+              true
+            } else {
+              false
+            }
+          },
+        isError = isError,
+        enabled = enabled,
+        singleLine = true,
+        textStyle = MaterialTheme.typography.bodyMedium,
+        shape = MaterialTheme.shapes.small
+      )
+
+      ExposedDropdownMenu(
+        expanded = expanded,
+        onDismissRequest = { expanded = false }
+      ) {
+        options.forEach { option ->
+          DropdownMenuItem(
+            text = {
+              Text(
+                text = option,
+                style = MaterialTheme.typography.bodyMedium
+              )
+            },
+            onClick = {
+              onOptionSelected(option)
+              expanded = false
+            },
+            contentPadding = ExposedDropdownMenuDefaults.ItemContentPadding
+          )
+        }
+      }
+    }
+
+    if (isError && errorMessage != null) {
+      Text(
+        text = errorMessage,
+        color = MaterialTheme.colorScheme.error,
+        style = MaterialTheme.typography.labelSmall,
+        modifier = Modifier.padding(start = 16.dp, top = 4.dp)
+      )
+    }
+  }
+}

frontend/features/device-initialization/src/commonMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/DeviceInitializationViewModel.kt

@@ -52,7 +52,7 @@ class DeviceInitializationViewModel(
   }
 
   fun setNetworkRole(role: NetworkRole) {
-    if (uiState.value.settings.deviceName.isNotBlank() || uiState.value.settings.sharedKey.isNotBlank()) {
+    if (uiState.value.settings.networkRole != role && (uiState.value.settings.deviceName.isNotBlank() || uiState.value.settings.sharedKey.isNotBlank())) {
       _uiState.update { it.copy(showRoleChangeWarning = true, pendingRole = role) }
     } else {
       println("[DeviceInit] Netzwerk-Rolle direkt gesetzt: $role")

frontend/features/device-initialization/src/jvmMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/DeviceInitializationConfig.jvm.kt

@@ -30,9 +30,11 @@ import androidx.compose.ui.text.input.VisualTransformation
 import androidx.compose.ui.unit.dp
 import at.mocode.frontend.core.designsystem.components.MsEnumDropdown
 import at.mocode.frontend.core.designsystem.components.MsFilePicker
+import at.mocode.frontend.core.designsystem.components.MsStringDropdown
 import at.mocode.frontend.core.designsystem.components.MsTextField
 import at.mocode.frontend.features.device.initialization.domain.DeviceInitializationValidator
 import at.mocode.frontend.features.device.initialization.domain.model.NetworkRole
+import javax.print.PrintServiceLookup
 
 @Composable
 actual fun DeviceInitializationConfig(
@@ -94,14 +96,18 @@ actual fun DeviceInitializationConfig(
         enabled = !uiState.isLocked
       )
 
-      MsTextField(
-        value = settings.defaultPrinter,
-        onValueChange = { viewModel.updateSettings { s -> s.copy(defaultPrinter = it) } },
+      val printers = remember {
+        PrintServiceLookup.lookupPrintServices(null, null).map { it.name }.sorted()
+      }
+
+      MsStringDropdown(
         label = "Standard-Drucker",
-        placeholder = "z.B. Brother-HL-L2350DW",
+        options = printers,
+        selectedOption = settings.defaultPrinter,
+        onOptionSelected = { viewModel.updateSettings { s -> s.copy(defaultPrinter = it) } },
+        placeholder = "Drucker auswählen...",
         enabled = !uiState.isLocked,
-        imeAction = ImeAction.Done,
-        keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() })
+        modifier = Modifier.padding(bottom = 8.dp)
       )
 
       if (settings.networkRole == NetworkRole.MASTER) {

frontend/features/veranstaltung-feature/src/jvmMain/kotlin/at/mocode/veranstaltung/feature/presentation/VeranstaltungWizardScreen.kt

@@ -118,7 +118,15 @@ private fun VorschauCard(state: VeranstaltungWizardState) {
           )
           Text(
             text = "| ${state.startDatum ?: ""} - ${state.endDatum ?: ""}",
-            style = MaterialTheme.typography.bodySmall
+            style = MaterialTheme.typography.bodySmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant
+          )
+        }
+        if (state.ansprechpersonName.isNotBlank()) {
+          Text(
+            text = "Ansprechperson: ${state.ansprechpersonName} (${state.ansprechpersonSatznummer})",
+            style = MaterialTheme.typography.labelSmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant
           )
         }
       }
@@ -135,18 +143,31 @@ private fun ZnsCheckStep(viewModel: VeranstaltungWizardViewModel) {
     if (!state.isZnsAvailable) {
       Card(colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.errorContainer)) {
         Row(Modifier.padding(16.dp), verticalAlignment = Alignment.CenterVertically) {
-          Icon(Icons.Default.Info, null, tint = MaterialTheme.colorScheme.error)
+          Icon(Icons.Default.Warning, null, tint = MaterialTheme.colorScheme.error)
           Spacer(Modifier.width(12.dp))
           Column {
-            Text("Stammdaten fehlen!", fontWeight = FontWeight.Bold)
-            Text("Bitte importieren Sie die aktuelle ZNS.zip über den ZNS-Importer.")
+            Text("🚨 Stammdaten fehlen!", fontWeight = FontWeight.Bold, style = MaterialTheme.typography.titleMedium)
+            Text("Für die Anlage einer Veranstaltung werden Vereins- und Reitdaten benötigt. Bitte importieren Sie die aktuelle ZNS.zip (VEREIN01, LIZENZ01).")
           }
         }
       }
-      Button(onClick = { /* Navigiere zum ZNS Importer */ }) {
+      Button(
+        onClick = { /* Navigiere zum ZNS Importer */ },
+        modifier = Modifier.fillMaxWidth(),
+        colors = ButtonDefaults.buttonColors(containerColor = MaterialTheme.colorScheme.error)
+      ) {
         Icon(Icons.Default.CloudDownload, null)
         Spacer(Modifier.width(8.dp))
-        Text("ZNS-Importer öffnen")
+        Text("Zum ZNS-Importer")
+      }
+
+      OutlinedButton(
+        onClick = { viewModel.checkZnsAvailability() },
+        modifier = Modifier.fillMaxWidth()
+      ) {
+        Icon(Icons.Default.Refresh, null)
+        Spacer(Modifier.width(8.dp))
+        Text("Status erneut prüfen")
       }
     } else {
       Card(colors = CardDefaults.cardColors(containerColor = Color(0xFFE8F5E9))) {

frontend/features/verein-feature/src/commonMain/kotlin/at/mocode/frontend/features/verein/domain/VereinRepository.kt

@@ -3,4 +3,5 @@ package at.mocode.frontend.features.verein.domain
 interface VereinRepository {
     suspend fun getVereine(): Result<List<Verein>>
     suspend fun saveVerein(verein: Verein): Result<Verein>
+    suspend fun findByOepsNr(oepsNr: String): Verein?
 }