Add tenant import progress polling

frontend/pages/administration/tenants/[id].vue

@@ -18,6 +18,12 @@ const tenantExportProgress = ref<null | {
   filesTotal: number
   filename: string
 }>(null)
+const tenantImportProgress = ref<null | {
+  status: string
+  filesDone: number
+  filesTotal: number
+  filename: string
+}>(null)
 const creatingUser = ref(false)
 const createUserModalOpen = ref(false)
 const createdUserPassword = ref("")
@@ -169,6 +175,7 @@ const importTenantExport = async (event: Event) => {
   if (!file || importingTenant.value) return
 
   importingTenant.value = true
+  tenantImportProgress.value = null
   lastImportResult.value = null
 
   try {
@@ -188,6 +195,44 @@ const importTenantExport = async (event: Event) => {
       })
     }
 
+    const importJobId = result.importId || result.exportId
+    if (importJobId) {
+      let job = result
+
+      tenantImportProgress.value = {
+        status: job.status,
+        filesDone: job.filesDone || 0,
+        filesTotal: job.filesTotal || 0,
+        filename: job.filename || file.name,
+      }
+
+      while (!["ready", "failed"].includes(job.status)) {
+        await new Promise((resolve) => setTimeout(resolve, 1500))
+        job = await admin.getTenantExport(importJobId)
+        tenantImportProgress.value = {
+          status: job.status,
+          filesDone: job.filesDone || 0,
+          filesTotal: job.filesTotal || 0,
+          filename: job.filename || file.name,
+        }
+      }
+
+      if (job.status === "failed") {
+        throw new Error(job.error || "Import konnte nicht abgeschlossen werden.")
+      }
+
+      await fetchTenant()
+      await auth.fetchMe()
+      await auth.switchTenant(String(job.tenantId || targetTenantId))
+
+      toast.add({
+        title: "Mandantenimport abgeschlossen",
+        description: job.filename || file.name,
+        color: "green",
+      })
+      return
+    }
+
     const rowCount = (result.tables || []).reduce((sum, table) => sum + table.rows, 0)
 
     lastImportResult.value = {
@@ -396,6 +441,17 @@ onMounted(async () => {
           >
             Export importieren
           </UButton>
+          <div v-if="tenantImportProgress" class="mt-4 space-y-2">
+            <UProgress
+              :model-value="tenantImportProgress.filesTotal ? Math.round((tenantImportProgress.filesDone / tenantImportProgress.filesTotal) * 100) : undefined"
+            />
+            <p class="text-xs text-gray-500">
+              {{ tenantImportProgress.status === 'ready' ? 'Import abgeschlossen' : 'Import wird verarbeitet' }}
+              <span v-if="tenantImportProgress.filesTotal">
+                · {{ tenantImportProgress.filesDone }} / {{ tenantImportProgress.filesTotal }} Schritte
+              </span>
+            </p>
+          </div>
         </div>
       </div>