CREATE TABLE "audit_log" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"workspace_id" uuid NOT NULL,
	"actor_user_id" uuid,
	"action" varchar(100) NOT NULL,
	"target_type" varchar(50) NOT NULL,
	"target_id" uuid,
	"metadata" jsonb,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL
);
--> statement-breakpoint
ALTER TABLE "markdown_backlog_items" ADD COLUMN "archived_at" timestamp with time zone;--> statement-breakpoint
ALTER TABLE "audit_log" ADD CONSTRAINT "audit_log_workspace_id_workspaces_id_fk" FOREIGN KEY ("workspace_id") REFERENCES "public"."workspaces"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "audit_log" ADD CONSTRAINT "audit_log_actor_user_id_users_id_fk" FOREIGN KEY ("actor_user_id") REFERENCES "public"."users"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint
CREATE INDEX "audit_log_workspace_id_created_at_idx" ON "audit_log" USING btree ("workspace_id","created_at");--> statement-breakpoint
CREATE INDEX "audit_log_actor_user_id_idx" ON "audit_log" USING btree ("actor_user_id");--> statement-breakpoint
CREATE INDEX "audit_log_action_idx" ON "audit_log" USING btree ("action");