CREATE TABLE IF NOT EXISTS tenant_domains (
  id INT AUTO_INCREMENT PRIMARY KEY,
  tenant_id INT NOT NULL,
  domain VARCHAR(255) NOT NULL,
  domain_norm VARCHAR(255) NOT NULL,
  domain_type VARCHAR(30) NOT NULL DEFAULT 'custom',
  status VARCHAR(30) NOT NULL DEFAULT 'active',
  verified_at DATETIME NULL,
  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  UNIQUE KEY uq_tenant_domains_domain_norm (domain_norm),
  KEY idx_tenant_domains_tenant_status (tenant_id, status),
  CONSTRAINT fk_tenant_domains_tenant
    FOREIGN KEY (tenant_id) REFERENCES tenants(id)
    ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;