test(gemini_cli_integration): migrate 2 sites to send_result() (Phase 2.10)

Changes:
- Rename ai_client.send(...) to ai_client.send_result(...) (2 sites)
- Add assert result.ok (1 site; the second test only checks result is not None)
- Add "from src.result_types import Result" import

2 tests pass.

tests/test_gemini_cli_integration.py

@@ -1,5 +1,6 @@
 from unittest.mock import MagicMock
 from src import ai_client
+from src.result_types import Result
 
 
 def test_gemini_cli_full_integration() -> None:
@@ -12,8 +13,9 @@ def test_gemini_cli_full_integration() -> None:
     }
     mock_adapter.last_usage = {"total_tokens": 10}
     ai_client._gemini_cli_adapter = mock_adapter
-    result = ai_client.send("context", "integrated test")
-    assert "Final integrated answer" in result
+    result = ai_client.send_result("context", "integrated test")
+    assert result.ok
+    assert "Final integrated answer" in result.data
 
 
 def test_gemini_cli_rejection_and_history() -> None:
@@ -26,5 +28,5 @@ def test_gemini_cli_rejection_and_history() -> None:
     }
     mock_adapter.last_usage = {}
     ai_client._gemini_cli_adapter = mock_adapter
-    result = ai_client.send("ctx", "msg", pre_tool_callback=lambda *a, **kw: None)
+    result = ai_client.send_result("ctx", "msg", pre_tool_callback=lambda *a, **kw: None)
     assert result is not None