feat(web): add Ops page and proxy control on :8600

Vite listens on 8500 and proxies /ops to the control plane. Admin Ops UI
covers pause/resume, scale, drain/force restart, and restart-needed banner.

Co-authored-by: Nasyarobby Putra <nasyarobby@gmail.com>

packages/server/package.json

@@ -6,7 +6,11 @@
   "main": "runner.js",
   "scripts": {
     "dev": "node --watch runner.js",
+    "dev:pm2": "node scripts/dev-pm2.mjs",
     "start": "node runner.js",
+    "start:api": "node server.js",
+    "start:worker": "node worker.js",
+    "start:control": "node control.js",
     "migrate": "node -e \"import('./db.js').then((m) => m.migrate().then(() => process.exit(0)))\""
   },
   "dependencies": {
@@ -31,6 +35,7 @@
     "nodemailer": "^9.0.5",
     "pino": "^10.3.1",
     "pino-roll": "^4.0.0",
+    "pm2": "^6.0.13",
     "ssh2-sftp-client": "^12.1.1",
     "webdav": "^5.10.0",
     "yaml": "^2.9.0"