Consolidate MangaCircus app, scraper, and Compose baseline

tools/start-all.js

@@ -0,0 +1,23 @@
+#!/usr/bin/env node
+'use strict';
+
+const fs = require('fs'), path = require('path');
+const { Supervisor } = require('../runtime/supervisor');
+const root = path.resolve(__dirname, '..');
+const lock = path.resolve(process.env.SCRAPER_DATA || path.join(process.env.DATA || path.join(root, 'data'), 'scraper'), 'supervisor.lock');
+fs.mkdirSync(path.dirname(lock), { recursive: true });
+if (fs.existsSync(lock)) {
+  const pid = Number(fs.readFileSync(lock, 'utf8'));
+  try { process.kill(pid, 0); throw new Error(`Supervisor already alive (PID ${pid})`); }
+  catch (e) { if (e.code !== 'ESRCH') throw e; fs.unlinkSync(lock); }
+}
+fs.writeFileSync(lock, String(process.pid), { flag: 'wx' });
+const supervisors = ['reader', 'scraper', 'sentinel'].map(name => new Supervisor(name, { root }));
+supervisors.forEach(service => service.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 Promise.all(supervisors.map(service => service.close()));
+  fs.unlinkSync(lock); process.exit(0);
+});