fix several bugs

scripts/reset_admin.sql

@@ -0,0 +1,19 @@
+-- Script to safely reset the admin user in OxiCloud
+-- Run this script to delete the existing admin user if you're having issues creating one
+
+-- Set the correct schema
+SET search_path TO auth;
+
+-- Delete the admin user if it exists
+DELETE FROM auth.users WHERE username = 'admin';
+
+-- Check if the user was deleted
+SELECT 'Admin user has been removed successfully. You can now create a new admin user.' AS message 
+WHERE NOT EXISTS (SELECT 1 FROM auth.users WHERE username = 'admin');
+
+-- Check if there are still users in the system
+SELECT 'Warning: No users remain in the system. You should register a new admin user.' AS warning 
+WHERE NOT EXISTS (SELECT 1 FROM auth.users LIMIT 1);
+
+-- Output remaining users for verification
+SELECT username, email, role FROM auth.users ORDER BY role, username;