fix: auto-fix ruff linting errors and remove unsupported upload-artifact

tests/unit/test_config.py

@@ -1,46 +1,45 @@
 """
 Unit tests for handler_base.config module.
 """
-import os
-import pytest
 
 
 class TestSettings:
     """Tests for Settings configuration."""
-    
+
     def test_default_settings(self, settings):
         """Test that default settings are loaded correctly."""
         assert settings.service_name == "test-service"
         assert settings.service_version == "1.0.0-test"
         assert settings.otel_enabled is False
-    
+
     def test_settings_from_env(self, monkeypatch):
         """Test that settings can be loaded from environment variables."""
         monkeypatch.setenv("SERVICE_NAME", "env-service")
         monkeypatch.setenv("SERVICE_VERSION", "2.0.0")
         monkeypatch.setenv("NATS_URL", "nats://custom:4222")
-        
+
         # Need to reimport to pick up env changes
         from handler_base.config import Settings
+
         s = Settings()
-        
+
         assert s.service_name == "env-service"
         assert s.service_version == "2.0.0"
         assert s.nats_url == "nats://custom:4222"
-    
+
     def test_embeddings_settings(self):
         """Test EmbeddingsSettings extends base correctly."""
         from handler_base.config import EmbeddingsSettings
-        
+
         s = EmbeddingsSettings()
         assert hasattr(s, "embeddings_model")
         assert hasattr(s, "embeddings_batch_size")
         assert s.embeddings_model == "bge"
-    
+
     def test_llm_settings(self):
         """Test LLMSettings has expected defaults."""
         from handler_base.config import LLMSettings
-        
+
         s = LLMSettings()
         assert s.llm_max_tokens == 2048
         assert s.llm_temperature == 0.7