CREATE TABLE `audit_log` (
	`id` bigint unsigned AUTO_INCREMENT NOT NULL,
	`user_id` bigint unsigned,
	`action` varchar(50) NOT NULL,
	`target_type` varchar(32),
	`target_id` varchar(64),
	`details` json,
	`created_at` timestamp NOT NULL DEFAULT (now()),
	CONSTRAINT `audit_log_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
ALTER TABLE `audit_log` ADD CONSTRAINT `audit_log_user_id_users_id_fk` FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE set null ON UPDATE no action;--> statement-breakpoint
CREATE INDEX `audit_log_action_idx` ON `audit_log` (`action`);