[Bug] ModuleNotFoundError: No module named 'resource'

Start in task_queue.py at the import resource and the get_memory_mb function shown in the issue. Run uvx agent-task-queue@latest on Windows to reproduce the ModuleNotFoundError, then verify the command starts successfully and reports process memory without the import failure.

Describe the bug
Encountered error while attempting to run agent-task-queue

To Reproduce:
Steps to reproduce the behavior:

1. Run command $uvx agent-task-queue@latest$
2. Encountered error

Traceback (most recent call last):
  File "<frozen runpy>", line 203, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\sheld\AppData\Local\uv\cache\archive-v0\d0WBs-76xzVqcxx1\Scripts\agent-task-queue.exe\__main__.py", line 4, in <module>
    from task_queue import main
  File "C:\Users\sheld\AppData\Local\uv\cache\archive-v0\d0WBs-76xzVqcxx1\Lib\site-packages\task_queue.py", line 12, in <module>
    import resource
ModuleNotFoundError: No module named 'resource'

Environment (please complete the following information):

• OS: Windows 11

Additional Notes
import resource is Linux\MacOS specific.

For cross-compatibility, we could use

import os
import psutil

then change

def get_memory_mb() -> float:
    """Get current process memory usage in MB (RSS - resident set size)."""
    usage = resource.getrusage(resource.RUSAGE_SELF)
    # ru_maxrss is in bytes on Linux, kilobytes on macOS
    if os.uname().sysname == "Darwin":
        return usage.ru_maxrss / (1024 * 1024)  # KB to MB
    return usage.ru_maxrss / 1024  # bytes to MB on Linux

to

def get_memory_mb() -> float:
    """Get current process memory usage in MB (RSS - resident set size)."""
    return psutil.Process(os.getpid()).memory_info().rss / (1024 ** 2)