fix(tui): use TERMINAL_CWD in _session_info for accurate status line path

_session_info() used os.getcwd() which reflects the gateway process
working directory, not the user's actual working directory. This caused
the TUI status line to display incorrect paths (e.g. D:\HermesWork
instead of D:\Hermes\HermesWork) after agent turns that changed the
process cwd.

Align with session.create which already correctly reads TERMINAL_CWD
env var set by the CLI launcher.

tui_gateway/server.py

@@ -1378,7 +1378,7 @@ def _session_info(agent) -> dict:
         "fast": service_tier == "priority",
         "tools": {},
         "skills": {},
-        "cwd": os.getcwd(),
+        "cwd": os.getenv("TERMINAL_CWD", os.getcwd()),
         "version": "",
         "release_date": "",
         "update_behind": None,