test(tui): fix stale mocks + xdist flakes in TUI test suite

All 61 TUI-related tests green across 3 consecutive xdist runs.

tests/tui_gateway/test_protocol.py:
- rename `get_messages` → `get_messages_as_conversation` on mock DB (method
  was renamed in the real backend, test was still stubbing the old name)
- update tool-message shape expectation: `{role, name, context}` matches
  current `_history_to_messages` output, not the legacy `{role, text}`

tests/hermes_cli/test_tui_resume_flow.py:
- `cmd_chat` grew a first-run provider-gate that bailed to "Run: hermes
  setup" before `_launch_tui` was ever reached; 3 tests stubbed
  `_resolve_last_session` + `_launch_tui` but not the gate
- factored a `main_mod` fixture that stubs `_has_any_provider_configured`,
  reused by all three tests

tests/test_tui_gateway_server.py:
- `test_config_set_personality_resets_history_and_returns_info` was flaky
  under xdist because the real `_write_config_key` touches
  `~/.hermes/config.yaml`, racing with any other worker that writes
  config. Stub it in the test.

tests/hermes_cli/test_model_validation.py

@@ -370,6 +370,8 @@ class TestCopilotNormalization:
         assert opencode_model_api_mode("opencode-zen", "minimax-m2.5") == "chat_completions"
 
     def test_opencode_go_api_modes_match_docs(self):
+        assert opencode_model_api_mode("opencode-go", "glm-5.1") == "chat_completions"
+        assert opencode_model_api_mode("opencode-go", "opencode-go/glm-5.1") == "chat_completions"
         assert opencode_model_api_mode("opencode-go", "glm-5") == "chat_completions"
         assert opencode_model_api_mode("opencode-go", "opencode-go/glm-5") == "chat_completions"
         assert opencode_model_api_mode("opencode-go", "kimi-k2.5") == "chat_completions"

tests/hermes_cli/test_opencode_go_in_model_list.py

@@ -15,7 +15,7 @@ def test_opencode_go_appears_when_api_key_set():
     opencode_go = next((p for p in providers if p["slug"] == "opencode-go"), None)
     
     assert opencode_go is not None, "opencode-go should appear when OPENCODE_GO_API_KEY is set"
-    assert opencode_go["models"] == ["glm-5", "kimi-k2.5", "mimo-v2-pro", "mimo-v2-omni", "minimax-m2.7", "minimax-m2.5"]
+    assert opencode_go["models"] == ["glm-5.1", "glm-5", "kimi-k2.5", "mimo-v2-pro", "mimo-v2-omni", "minimax-m2.7", "minimax-m2.5"]
     # opencode-go can appear as "built-in" (from PROVIDER_TO_MODELS_DEV when
     # models.dev is reachable) or "hermes" (from HERMES_OVERLAYS fallback when
     # the API is unavailable, e.g. in CI).

tests/hermes_cli/test_tui_resume_flow.py

@@ -15,9 +15,20 @@ def _args(**overrides):
     return Namespace(**base)
 
 
-def test_cmd_chat_tui_continue_uses_latest_tui_session(monkeypatch):
-    import hermes_cli.main as main_mod
+@pytest.fixture
+def main_mod(monkeypatch):
+    """cmd_chat entry with the first-run provider-gate stubbed past.
 
+    `cmd_chat` now early-exits when no API key is configured (post-merge);
+    these tests exercise the post-config routing so we fake the check out.
+    """
+    import hermes_cli.main as mod
+
+    monkeypatch.setattr(mod, "_has_any_provider_configured", lambda: True)
+    return mod
+
+
+def test_cmd_chat_tui_continue_uses_latest_tui_session(monkeypatch, main_mod):
     calls = []
     captured = {}
 
@@ -40,9 +51,7 @@ def test_cmd_chat_tui_continue_uses_latest_tui_session(monkeypatch):
     assert captured["resume"] == "20260408_235959_a1b2c3"
 
 
-def test_cmd_chat_tui_continue_falls_back_to_latest_cli_session(monkeypatch):
-    import hermes_cli.main as main_mod
-
+def test_cmd_chat_tui_continue_falls_back_to_latest_cli_session(monkeypatch, main_mod):
     calls = []
     captured = {}
 
@@ -69,9 +78,7 @@ def test_cmd_chat_tui_continue_falls_back_to_latest_cli_session(monkeypatch):
     assert captured["resume"] == "20260408_235959_d4e5f6"
 
 
-def test_cmd_chat_tui_resume_resolves_title_before_launch(monkeypatch):
-    import hermes_cli.main as main_mod
-
+def test_cmd_chat_tui_resume_resolves_title_before_launch(monkeypatch, main_mod):
     captured = {}
 
     def fake_launch(resume_session_id=None, tui_dev=False):

tests/hermes_cli/test_web_server.py

@@ -1122,6 +1122,7 @@ class TestStatusRemoteGateway:
         assert data["gateway_running"] is True
         assert data["gateway_pid"] == 999
         assert data["gateway_state"] == "running"
+        assert data["gateway_health_url"] == "http://gw:8642"
 
     def test_status_remote_probe_not_attempted_when_local_pid_found(self, monkeypatch):
         """When local PID check succeeds, the remote probe is never called."""
@@ -1158,6 +1159,7 @@ class TestStatusRemoteGateway:
         assert resp.status_code == 200
         data = resp.json()
         assert data["gateway_running"] is False
+        assert data["gateway_health_url"] is None
 
     def test_status_remote_running_null_pid(self, monkeypatch):
         """Remote gateway running but PID not in response — pid should be None."""