Consolidate MangaCircus app, scraper, and Compose baseline

runtime/launch.js

@@ -0,0 +1,10 @@
+#!/usr/bin/env node
+'use strict';
+const { Supervisor } = require('./supervisor');
+const supervisor = new Supervisor(process.argv[2] || 'reader');
+supervisor.start();
+const keepalive = setInterval(() => {}, 60000);
+let closing = false;
+for (const signal of ['SIGINT', 'SIGTERM']) process.on(signal, async () => {
+  if (closing) return; closing = true; clearInterval(keepalive); await supervisor.close(); process.exit(0);
+});