CREATE TABLE projects (
  id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
  tenant_id BIGINT UNSIGNED NOT NULL,
  name VARCHAR(255) NOT NULL,
  slug VARCHAR(190) NOT NULL,
  status VARCHAR(32) NOT NULL DEFAULT 'active',
  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  UNIQUE KEY uq_projects_tenant_slug (tenant_id, slug),
  CONSTRAINT fk_projects_tenant FOREIGN KEY (tenant_id) REFERENCES tenants (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;