Login resuelto

db/schema.sql

@@ -415,18 +415,19 @@ INSERT INTO tenants (name, slug, contact_email) VALUES
 ('Aduanasoft Demo', 'aduanasoft-demo', 'demo@aduanasoft.com');
 
 -- Usuario admin por defecto (password: admin123)
--- Hash generado con Argon2: $argon2id$v=19$m=65536,t=3,p=4$...
+-- Hash Argon2id generado con m=65536,t=3,p=4
 INSERT INTO users (tenant_id, email, first_name, last_name, password_hash, role, is_active, email_verified) 
 SELECT 
     id,
     'admin@aduanasoft.com',
     'Admin', 
     'Sistema',
-    '$argon2id$v=19$m=65536,t=3,p=4$example_hash_here',
+    '$argon2id$v=19$m=65536,t=3,p=4$wpjz/t+bM4bQmtM6B6A0pg$ELwnGUL4S1Y6tywp0LS6cre0bvWEoVuJ845spZ9Z9IQ',
     'ADMIN',
     true,
     true
-FROM tenants WHERE slug = 'aduanasoft-demo';
+FROM tenants WHERE slug = 'aduanasoft-demo'
+ON CONFLICT (tenant_id, email) DO NOTHING;
 
 -- Categorías por defecto
 INSERT INTO ticket_categories (tenant_id, name, description, sla_response_hours, sla_resolution_hours)