Fix some ruff issues in code

tests/test_agent.py

@@ -99,7 +99,7 @@ class TestExecuteToolCall:
                 "arguments": '{"folder_name": 123}',  # Wrong type
             },
         }
-        result = agent._execute_tool_call(tool_call)
+        agent._execute_tool_call(tool_call)
 
         mem = get_memory()
         assert len(mem.episodic.recent_errors) > 0
@@ -187,7 +187,7 @@ class TestStep:
         mock_llm.complete = Mock(side_effect=mock_complete)
         agent = Agent(llm=mock_llm, max_tool_iterations=3)
 
-        response = agent.step("Do something")
+        agent.step("Do something")
 
         assert call_count[0] == 4
 
@@ -278,6 +278,6 @@ class TestAgentIntegration:
         mock_llm.complete = Mock(side_effect=mock_complete)
         agent = Agent(llm=mock_llm)
 
-        response = agent.step("List my downloads and movies")
+        agent.step("List my downloads and movies")
 
         assert call_count[0] == 3

tests/test_agent_edge_cases.py

@@ -164,7 +164,7 @@ class TestStepEdgeCases:
         mock_llm.complete = Mock(side_effect=mock_complete)
         agent = Agent(llm=mock_llm, max_tool_iterations=3)
 
-        response = agent.step("Loop test")
+        agent.step("Loop test")
 
         assert call_count[0] == 4
 
@@ -191,7 +191,7 @@ class TestStepEdgeCases:
         )
         agent = Agent(llm=mock_llm)
 
-        response = agent.step("Hello")
+        agent.step("Hello")
 
         call_args = mock_llm.complete.call_args[0][0]
         system_prompt = call_args[0]["content"]
@@ -208,7 +208,7 @@ class TestStepEdgeCases:
         )
         agent = Agent(llm=mock_llm)
 
-        response = agent.step("Hello")
+        agent.step("Hello")
 
         call_args = mock_llm.complete.call_args[0][0]
         system_prompt = call_args[0]["content"]
@@ -268,7 +268,7 @@ class TestAgentConcurrencyEdgeCases:
         mock_llm.complete = Mock(side_effect=mock_complete)
         agent = Agent(llm=mock_llm)
 
-        response = agent.step("Set movie folder")
+        agent.step("Set movie folder")
 
         mem = get_memory()
         assert mem.ltm.get_config("movie_folder") == str(real_folder["movies"])

tests/test_config_critical.py

@@ -1,6 +1,5 @@
 """Critical tests for configuration validation."""
 
-
 import pytest
 
 from agent.config import ConfigurationError, Settings

tests/test_prompts_critical.py

@@ -1,6 +1,5 @@
 """Critical tests for prompt builder - Tests that would have caught bugs."""
 
-
 from agent.prompts import PromptBuilder
 from agent.registry import make_tools
 

tests/test_prompts_edge_cases.py

@@ -1,6 +1,5 @@
 """Edge case tests for PromptBuilder."""
 
-
 from agent.prompts import PromptBuilder
 from agent.registry import make_tools
 

tests/test_registry_edge_cases.py

@@ -1,6 +1,5 @@
 """Edge case tests for tool registry."""
 
-
 import pytest
 
 from agent.registry import Tool, make_tools

tests/test_repositories.py

@@ -1,6 +1,5 @@
 """Tests for JSON repositories."""
 
-
 from domain.movies.entities import Movie
 from domain.movies.value_objects import MovieTitle, Quality, ReleaseYear
 from domain.shared.value_objects import FilePath, FileSize, ImdbId