CREATE TABLE `conversations` (
	`created_at` text NOT NULL,
	`id` text PRIMARY KEY NOT NULL,
	`model_id` text NOT NULL,
	`project_id` text NOT NULL,
	`title` text DEFAULT '新会话' NOT NULL,
	`updated_at` text NOT NULL,
	FOREIGN KEY (`model_id`) REFERENCES `models`(`id`) ON UPDATE no action ON DELETE no action,
	FOREIGN KEY (`project_id`) REFERENCES `projects`(`id`) ON UPDATE no action ON DELETE no action
);
--> statement-breakpoint
CREATE INDEX `conversations_project_id_idx` ON `conversations` (`project_id`);
--> statement-breakpoint
CREATE TABLE `messages` (
	`content` text DEFAULT '' NOT NULL,
	`conversation_id` text NOT NULL,
	`created_at` text NOT NULL,
	`id` text PRIMARY KEY NOT NULL,
	`parts` text,
	`role` text NOT NULL,
	FOREIGN KEY (`conversation_id`) REFERENCES `conversations`(`id`) ON UPDATE no action ON DELETE cascade
);
--> statement-breakpoint
CREATE INDEX `messages_conversation_id_idx` ON `messages` (`conversation_id`);