refactor(cli): address review — Flow typing, debug logging, flow-vs-crew naming

Review follow-ups from @lucasgomide:

- Type flow helpers as Flow[Any] (via TYPE_CHECKING import) instead of Any and
  drop the defensive getattr chains — _definition is a typed PrivateAttr and
  name/suppress_flow_events are typed fields, so attribute access is safe.
- Replace the silent `except Exception: pass` blocks with logger.debug(...,
  exc_info=True) so unexpected failures are diagnosable in the field
  (_flow_method_types, _flow_uses_human_feedback, suppress_flow_events toggle).
- Flow-vs-crew naming: the flow worker now uses group="flow" (was the
  misleading "crew"), and the shared completion/failure handlers report the
  run with an entity-aware noun ("flow" vs "crew") via _run_noun.

Deferred (separate PR): the os._exit(130) hard-kill on user quit is kept as-is
to match the existing crew convention (run_crew._run_json_crew).

Tests: test_flow_done_uses_flow_wording_for_unfinished_tool; existing crew
wording tests unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RBYGqJHC2TMC6fonFziuuh

lib/cli/tests/test_crew_run_tui.py

@@ -967,6 +967,31 @@ async def test_crew_done_does_not_mark_unfinished_tool_successful() -> None:
     assert app._plan_step_status == {1: "failed", 2: "done", 3: "done"}
 
 
+@pytest.mark.asyncio
+async def test_flow_done_uses_flow_wording_for_unfinished_tool() -> None:
+    # The shared completion handler reports "flow" (not "crew") in flow mode.
+    app = CrewRunApp(crew_name="Demo Flow")
+    app._flow = SimpleNamespace()
+
+    async with app.run_test(size=(100, 40)) as pilot:
+        app._log_entries = [
+            {
+                "tool_name": "search",
+                "status": "running",
+                "args": None,
+                "result": None,
+                "error": None,
+                "start_time": time.time() - 2,
+                "duration": None,
+                "task_idx": 1,
+            }
+        ]
+        app._on_crew_done("final output")
+        await pilot.pause()
+
+    assert app._log_entries[0]["error"] == "No result received before flow completed"
+
+
 @pytest.mark.asyncio
 async def test_crew_done_does_not_timeout_memory_save() -> None:
     app = _app_with_plan()