RemoteTask Dev Tunnel

Usage:
1. Create session: POST /_session?package=<package-name>
2. Connect CLI: wss://tun.dev.mcplinx.com/_ws?session=<session-id>
3. OAuth Callback: https://tun.dev.mcplinx.com/<user-hashid>/<package-name>/callback
4. Generic Webhook: https://tun.dev.mcplinx.com/<user-hashid>/<package-name>/webhook

Examples:
  POST /_session?package=my-github-connector
  → Returns: {"sessionId": "GYvC95LR-my-github-connector", "pathPrefix": "GYvC95LR/my-github-connector", "callbackUrl": "https://tun.dev.mcplinx.com/GYvC95LR/my-github-connector/callback"}
  
  OAuth Callback (fixed URL):
  https://tun.dev.mcplinx.com/GYvC95LR/my-github-connector/callback
  
  Webhook (fixed URL):
  https://tun.dev.mcplinx.com/GYvC95LR/my-github-connector/webhook

Note: The format uses your user hashid as the path prefix, allowing fixed URLs for OAuth callbacks and webhooks.