[BUG] identified text output as "waiting for output" during pytest

[donghao1393]

• command
  "cd /Users/dong.hao/studio/workshop/mcp/imgutils && timeout 20 uv run pytest -v"
  timeout_ms
  25000
• output

Process started with PID 61588 (shell: /bin/sh)
Initial output:
============================= test session starts ==============================
platform darwin -- Python 3.12.10, pytest-8.4.1, pluggy-1.6.0 -- /Users/dong.hao/studio/workshop/mcp/imgutils/.venv/bin/python3
cachedir: .pytest_cache
rootdir: /Users/dong.hao/studio/workshop/mcp/imgutils
configfile: pyproject.toml
testpaths: tests
plugins: asyncio-1.1.0, anyio-4.8.0, cov-6.2.1
asyncio: mode=Mode.STRICT, asyncio_default_fixture_loop_scope=function, asyncio_default_test_loop_scope=function
collecting ... 
🔄 Process 61588 is waiting for input (detected: "...")

• expectation

imgutils on  feature/integrate-image-info [!⇡] is 📦 v1.2.0 via 🐍 v3.12.10 (imgutils)
󰄛 ❯ uv run pytest
==================================================================================================================================================== test session starts ====================================================================================================================================================
platform darwin -- Python 3.12.10, pytest-8.4.1, pluggy-1.6.0
rootdir: /Users/dong.hao/studio/workshop/mcp/imgutils
configfile: pyproject.toml
testpaths: tests
plugins: asyncio-1.1.0, anyio-4.8.0, cov-6.2.1
asyncio: mode=Mode.STRICT, asyncio_default_fixture_loop_scope=function, asyncio_default_test_loop_scope=function
collected 13 items

tests/integration/test_tools.py ..                                                                                                                                                                                                                                                                                    [ 15%]
tests/unit/test_server.py .F....                                                                                                                                                                                                                                                                                      [ 61%]
tests/unit/test_utils.py F.F..                                                                                                                                                                                                                                                                                        [100%]