* refactor: re-architect tests to mirror the codebase
* Update tests.yml
* fix: add missing tool_error imports after registry refactor
* fix(tests): replace patch.dict with monkeypatch to prevent env var leaks under xdist
patch.dict(os.environ) can leak TERMINAL_ENV across xdist workers,
causing test_code_execution tests to hit the Modal remote path.
* fix(tests): fix update_check and telegram xdist failures
- test_update_check: replace patch("hermes_cli.banner.os.getenv") with
monkeypatch.setenv("HERMES_HOME") — banner.py no longer imports os
directly, it uses get_hermes_home() from hermes_constants.
- test_telegram_conflict/approval_buttons: provide real exception classes
for telegram.error mock (NetworkError, TimedOut, BadRequest) so the
except clause in connect() doesn't fail with "catching classes that do
not inherit from BaseException" when xdist pollutes sys.modules.
* fix(tests): accept unavailable_models kwarg in _prompt_model_selection mock
Extract the inline file-drop detection logic into a standalone
_detect_file_drop() function at module level for testability. The main
loop now calls this function instead of inlining the logic.
Tests cover:
- Slash commands still route correctly (/help, /quit, /xyz)
- Image paths auto-detected (.png, .jpg, .gif, etc.)
- Non-image files detected (.py, .txt, Makefile, etc.)
- Backslash-escaped spaces from macOS drag-and-drop
- Trailing user text preserved as remainder
- Edge cases: directories, symlinks, no-extension files
- Non-string input, empty strings, nonexistent paths
