feat(studio): run nitro scans in the background with cancel-re-attach and nightly auto-clean

scripts/jobs-worker.ts

@@ -19,6 +19,7 @@ import {
 	parseDfOutput,
 } from "../src/lib/services/disk-usage";
 import { publishDueArticles } from "../src/lib/services/news-scheduler";
+import { scheduledAutoCleanFakeNitros } from "../src/lib/services/nitro-cleanup";
 import { rcon } from "../src/lib/services/rcon";
 
 function captureWorkerError(err: unknown, context: string): void {
@@ -353,6 +354,27 @@ async function publishScheduledArticles(): Promise<void> {
 	}
 }
 
+/** Nightly self-cleaning of old fake .nitro leftovers (skips when a scan is
+ * running in the studio). Requires the `items_base` truth list, so a DB outage
+ * shows up here as a captured error instead of deleting anything. */
+async function autoCleanNitroFakes(): Promise<void> {
+	try {
+		const result = await scheduledAutoCleanFakeNitros(30);
+		if (result.skipped) {
+			logger.info("Skipped nightly nitro auto-clean: scan in progress", {
+				module: "jobs",
+			});
+		} else {
+			logger.info("Nightly nitro auto-clean finished", {
+				module: "jobs",
+				deleted: result.deleted,
+			});
+		}
+	} catch (err) {
+		captureWorkerError(err, "Nitro auto-clean failed");
+	}
+}
+
 async function reportWorkerHeartbeat(): Promise<void> {
 	if (!redis) return;
 	await redis
@@ -433,6 +455,15 @@ async function main() {
 		void reportWorkerHeartbeat();
 	});
 	await reportWorkerHeartbeat();
+
+	new Cron("0 2 * * *", () => {
+		autoCleanNitroFakes().catch((e) =>
+			captureWorkerError(e, "Nitro auto-clean error"),
+		);
+	});
+	logger.info("Scheduled: nitro auto-clean (daily 02:00)", {
+		module: "jobs",
+	});
 	await Promise.all([
 		backupEmulatorJar(),
 		cleanupOldLogs(),