Fix macOS test failure: use /Users path instead of /home

[Copilot]

Test test_only_user_defined_not_system fails on macOS because /home/user/... resolves under /var (a system path), unlike Linux where /home contains user directories.

Changes

• Updated test to use platform-specific non-system paths:
  • macOS: /Users/testuser/my_sensitive_project
  • Linux: /home/user/my_sensitive_project (unchanged)
  • Windows: ~/MySensitiveProject (unchanged)

# Before
if system == "Windows":
    custom_path = os.path.join(os.path.expanduser("~"), "MySensitiveProject")
else:
    custom_path = "/home/user/my_sensitive_project"

# After
if system == "Windows":
    custom_path = os.path.join(os.path.expanduser("~"), "MySensitiveProject")
elif system == "Darwin":
    custom_path = "/Users/testuser/my_sensitive_project"
else:
    custom_path = "/home/user/my_sensitive_project"

On macOS, /home is an automounter directory that may resolve to paths under /var. Since /var is in darwin.py system paths, this caused false positives in system path detection.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/repos/gb119/bad_path/actions/runs/21784719479
  • Triggering command: /usr/bin/curl curl -s REDACTED -H Accept: application/vnd.github+json (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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