test(ai_client): rename send_result to send in 22 remaining test files

Batch rename of 22 test files. 62 references renamed total.

The full test suite is now GREEN again, matching the pre-rename baseline
from Task 1.1. Pure mechanical rename. No behavior change.

Files affected: test_ai_cache_tracking, test_ai_client_cli,
test_ai_client_result, test_api_events, test_context_pruner,
test_deepseek_provider, test_gemini_cli_* (3 files), test_gui2_mcp,
test_headless_* (2 files), test_live_gui_integration_v2,
test_orchestration_logic, test_phase6_engine, test_rag_integration,
test_run_worker_lifecycle_abort, test_spawn_interception_v2,
test_symbol_parsing, test_tier4_interceptor, test_tiered_aggregation,
test_token_usage.

Note: spec estimated 24 files; actual is 22 (test_deprecation_warnings
no longer exists, and 1 fewer file than spec's list).

Refs: conductor/tracks/send_result_to_send_20260616/

tests/test_deepseek_provider.py

@@ -29,7 +29,7 @@ def test_deepseek_completion_logic(mock_post: MagicMock) -> None:
   }
   mock_post.return_value = mock_response
   
-  result = ai_client.send_result(md_content="Context", user_message="Hi", base_dir=".")
+  result = ai_client.send(md_content="Context", user_message="Hi", base_dir=".")
   assert result.ok
   assert result.data == "Hello World"
   assert mock_post.called
@@ -53,7 +53,7 @@ def test_deepseek_reasoning_logic(mock_post: MagicMock) -> None:
   }
   mock_post.return_value = mock_response
 
-  result = ai_client.send_result(md_content="Context", user_message="Hi", base_dir=".")
+  result = ai_client.send(md_content="Context", user_message="Hi", base_dir=".")
   assert result.ok
   assert "<thinking>\nChain of thought\n</thinking>" in result.data
   assert "Final answer" in result.data
@@ -96,7 +96,7 @@ def test_deepseek_tool_calling(mock_post: MagicMock) -> None:
   mock_post.side_effect = [mock_resp1, mock_resp2]
   mock_dispatch.return_value = "Hello World"
   
-  result = ai_client.send_result(md_content="Context", user_message="Read test.txt", base_dir=".")
+  result = ai_client.send(md_content="Context", user_message="Read test.txt", base_dir=".")
   assert result.ok
   assert "File content is: Hello World" in result.data
   assert mock_dispatch.called
@@ -123,7 +123,7 @@ def test_deepseek_streaming(mock_post: MagicMock) -> None:
   mock_response.iter_lines.return_value = [c.encode('utf-8') for c in chunks]
   mock_post.return_value = mock_response
   
-  result = ai_client.send_result(md_content="Context", user_message="Stream test", base_dir=".", stream=True)
+  result = ai_client.send(md_content="Context", user_message="Stream test", base_dir=".", stream=True)
   assert result.ok
   assert result.data == "Hello World"
 
@@ -144,7 +144,7 @@ def test_deepseek_payload_verification(mock_post: MagicMock) -> None:
   }
   mock_post.return_value = mock_response
   
-  result = ai_client.send_result(md_content="Context", user_message="Message 1", base_dir=".", discussion_history="History")
+  result = ai_client.send(md_content="Context", user_message="Message 1", base_dir=".", discussion_history="History")
   assert result.ok
 
   args, kwargs = mock_post.call_args
@@ -174,7 +174,7 @@ def test_deepseek_reasoner_payload_verification(mock_post: MagicMock) -> None:
   }
   mock_post.return_value = mock_response
   
-  result = ai_client.send_result(md_content="Context", user_message="Message 1", base_dir=".")
+  result = ai_client.send(md_content="Context", user_message="Message 1", base_dir=".")
   assert result.ok
 
   args, kwargs = mock_post.call_args