> postgresql 2>&1 | persistproc capture postgres
Writing logs to /tmp/...
Reporting to persistproc...
<postgresql output>

> persistproc list
PID 56791: postgres
  Command: persistproc capture postgres
  Working directory: <wd of postgresql invocation>

How it works:

• New tool call track which asks persistproc to track a process without managing it. Args: pid: int, log_path?: string
• persistproc capture writes lines to a temp directory and reports its pid and log path
• Update ProcessManager and helper objects to support tracked processes (called "external processes" internally) and custom log paths