feat(ui): update UI backend options to use 'cli' and 'tui'

tests/test_ui_runtime.py

@@ -5,40 +5,40 @@ from dataclasses import dataclass
 from EvoScientist.cli.tui_runtime import normalize_ui_backend, resolve_ui_backend, run_streaming
 
 
-def test_normalize_ui_backend_defaults_to_rich():
-    assert normalize_ui_backend(None) == "rich"
-    assert normalize_ui_backend("") == "rich"
+def test_normalize_ui_backend_defaults_to_cli():
+    assert normalize_ui_backend(None) == "cli"
+    assert normalize_ui_backend("") == "cli"
 
 
 def test_normalize_ui_backend_accepts_known_values():
-    assert normalize_ui_backend("rich") == "rich"
-    assert normalize_ui_backend("textual") == "textual"
-    assert normalize_ui_backend("TeXtUaL") == "textual"
+    assert normalize_ui_backend("cli") == "cli"
+    assert normalize_ui_backend("tui") == "tui"
+    assert normalize_ui_backend("TUI") == "tui"
 
 
-def test_normalize_ui_backend_unknown_falls_back_to_rich():
-    assert normalize_ui_backend("unknown-ui") == "rich"
+def test_normalize_ui_backend_unknown_falls_back_to_cli():
+    assert normalize_ui_backend("unknown-ui") == "cli"
 
 
 def test_resolve_ui_backend_falls_back_when_textual_unavailable(monkeypatch):
     monkeypatch.setattr("EvoScientist.cli.tui_runtime._has_textual_support", lambda: False)
-    assert resolve_ui_backend("textual") == "rich"
+    assert resolve_ui_backend("tui") == "cli"
 
 
-def test_resolve_ui_backend_keeps_textual_when_available(monkeypatch):
+def test_resolve_ui_backend_keeps_tui_when_available(monkeypatch):
     monkeypatch.setattr("EvoScientist.cli.tui_runtime._has_textual_support", lambda: True)
-    assert resolve_ui_backend("textual") == "textual"
+    assert resolve_ui_backend("tui") == "tui"
 
 
 @dataclass
 class _BrokenBackend:
-    name: str = "textual"
+    name: str = "tui"
 
     def run_streaming(self, **kwargs):  # noqa: ANN003, ANN201
         raise RuntimeError("boom")
 
 
-def test_run_streaming_falls_back_to_rich_on_runtime_error(monkeypatch):
+def test_run_streaming_falls_back_to_cli_on_runtime_error(monkeypatch):
     monkeypatch.setattr("EvoScientist.cli.tui_runtime.get_backend", lambda *a, **k: _BrokenBackend())
 
     class _RichStub:
@@ -48,7 +48,7 @@ def test_run_streaming_falls_back_to_rich_on_runtime_error(monkeypatch):
     monkeypatch.setattr("EvoScientist.cli.tui_runtime.RichStreamingBackend", lambda: _RichStub())
 
     result = run_streaming(
-        ui_backend="textual",
+        ui_backend="tui",
         agent=object(),
         message="hello",
         thread_id="t1",