feat: add pipeline for multi instrument flow

web/src/lib/tools/auto-run.ts

@@ -0,0 +1,26 @@
+export function createAutoRunner(delayMs = 300) {
+	let token = 0;
+	let timer: ReturnType<typeof setTimeout> | undefined;
+
+	return {
+		next(): number {
+			cancelTimer();
+			return ++token;
+		},
+		isCurrent(t: number): boolean {
+			return t === token;
+		},
+		schedule(run: () => void): () => void {
+			cancelTimer();
+			timer = setTimeout(run, delayMs);
+			return cancelTimer;
+		}
+	};
+
+	function cancelTimer() {
+		if (timer !== undefined) {
+			clearTimeout(timer);
+			timer = undefined;
+		}
+	}
+}