UnicodeEncodeError on Windows with emoji in logging output

[jensens]

Description

mxdev fails on Windows CI with a UnicodeEncodeError when logging a message containing an emoji (🎂) on line 81 of main.py.

Error Message

--- Logging error ---
Traceback (most recent call last):
  File "C:\hostedtoolcache\windows\Python\3.9.13\x64\lib\logging\__init__.py", line 1086, in emit
    stream.write(msg + self.terminator)
  File "C:\hostedtoolcache\windows\Python\3.9.13\x64\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\U0001f382' in position 0: character maps to <undefined>
Message: '🎂 You are now ready for: pip install -r requirements-mxdev.txt'

Root Cause

Windows console uses cp1252 encoding by default, which cannot represent Unicode emojis. The emoji on main.py:81 causes this error when Python's logging module attempts to write to stdout.

Impact

• Logging errors appear in Windows CI output
• Does not fail tests but creates noise in CI logs
• Violates project code style: "Only use emojis if the user explicitly requests it"

Reproduction

A test has been added in tests/test_logging.py::test_emoji_logging_with_cp1252_encoding() that reproduces this issue on Linux by simulating the Windows cp1252 encoding environment.

pytest tests/test_logging.py::test_emoji_logging_with_cp1252_encoding -v

Solution

Remove the emoji from line 81 in src/mxdev/main.py and replace with plain text.