CLI `_rewind_persisted_user_turn`, TUI `_rewind_active_session_history` and gateway
`rewind_session` each re-ran get_active_message_ids -> get_messages_as_conversation ->
split_user_originated_turn -> rewind_to_message with their own warm/durable comparison
helpers and three different out-of-range contracts (RuntimeError / ValueError / None).
The durable transcript is the authority for a rewind, so the implementation now lives
with the data: `SessionDB.rewind_user_turn` (hermes_state_rewind.py) with one typed
out-of-range error (`RewindTargetUnavailableError`). Surfaces keep only lock, eviction
and rendering glue and map that error to their own message.
* 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
teknium1