feat(pm2): update PM2 configuration and introduce new start script

- Updated PM2 version to 6.0.14 in package.json and pnpm-lock.yaml for improved stability.
- Changed interpreter for PM2 processes to use `process.execPath` for consistency.
- Added a new `start:pm2` script in package.json to streamline PM2 process management.
- Updated README to reflect changes in PM2 usage and instructions for starting the application.

packages/server/package.json

@@ -42,7 +42,7 @@
     "nodemailer": "^9.0.5",
     "pino": "^10.3.1",
     "pino-roll": "^4.0.0",
-    "pm2": "^6.0.13",
+    "pm2": "6.0.14",
     "rss-parser": "^3.13.0",
     "ssh2-sftp-client": "^12.1.1",
     "webdav": "^5.10.0",