fix(ui):Error pops up when enabling disabled client (#2594)

* fix(ui):Error pops up when enabling disabled client

Action is prevented and a clear message is displayed in Web UI

* fix formatting

* fix type issue

* fix formatting

---------

Co-authored-by: Bernd Storath <999999bst@gmail.com>

src/server/api/client/[clientId]/enable.post.ts

@@ -12,6 +12,19 @@ export default definePermissionEventHandler(
     const client = await Database.clients.get(clientId);
     checkPermissions(client);
 
+    if (
+      client &&
+      client.expiresAt !== null &&
+      new Date() > new Date(client.expiresAt)
+    ) {
+      throw createError({
+        statusCode: 422,
+        statusMessage:
+          'Client is expired. Please update the expiration date first.',
+        message: 'Client is expired. Please update the expiration date first.',
+      });
+    }
+
     await Database.clients.toggle(clientId, true);
     await WireGuard.saveConfig();
     return { success: true };