fix(coderoot): Use expanduser

[hubertdeng123]

using ~/code doesn't work, so this fixes it

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 91.99%. Comparing base (34f6adc) to head (729bd70).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
devservices/utils/devenv.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #174   +/-   ##
=======================================
  Coverage   91.99%   91.99%           
=======================================
  Files          22       22           
  Lines        1286     1286           
=======================================
  Hits         1183     1183           
  Misses        103      103           

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