CREATE TABLE "users" ( "id" serial PRIMARY KEY NOT NULL, "user_id" varchar(64) NOT NULL, "email" varchar(255) NOT NULL, "password" varchar(255) NOT NULL, "nickname" varchar(64) NOT NULL, "avatar" varchar(512), "plan" varchar(20) DEFAULT 'free', "status" varchar(20) DEFAULT 'active', "email_verified" boolean DEFAULT false, "last_login_at" timestamp with time zone, "created_at" timestamp with time zone DEFAULT now(), "updated_at" timestamp with time zone DEFAULT now(), CONSTRAINT "users_user_id_unique" UNIQUE("user_id"), CONSTRAINT "users_email_unique" UNIQUE("email") ); --> statement-breakpoint CREATE TABLE "verification_codes" ( "id" serial PRIMARY KEY NOT NULL, "email" varchar(255) NOT NULL, "code" varchar(6) NOT NULL, "type" varchar(20) NOT NULL, "expires_at" timestamp with time zone NOT NULL, "used" boolean DEFAULT false, "created_at" timestamp with time zone DEFAULT now() ); --> statement-breakpoint ALTER TABLE "conversations" ADD COLUMN "user_id" varchar(64);--> statement-breakpoint ALTER TABLE "user_settings" ADD COLUMN "user_id" varchar(64);--> statement-breakpoint ALTER TABLE "user_settings" ADD CONSTRAINT "user_settings_user_id_unique" UNIQUE("user_id");