fix: resolve CI lint and test failures

app/local-ai-commit-reviewer/tests/unit/test_config.py

@@ -0,0 +1,50 @@
+from src.config import Config, ConfigLoader
+
+
+class TestConfig:
+    def test_default_config(self):
+        config = Config()
+        assert config.llm.endpoint == "http://localhost:11434"
+        assert config.llm.model == "codellama"
+        assert config.review.strictness == "balanced"
+        assert config.hooks.enabled is True
+
+    def test_config_from_dict(self):
+        data = {
+            "llm": {
+                "endpoint": "http://custom:9000",
+                "model": "custom-model"
+            },
+            "review": {
+                "strictness": "strict"
+            }
+        }
+        config = Config(**data)
+        assert config.llm.endpoint == "http://custom:9000"
+        assert config.llm.model == "custom-model"
+        assert config.review.strictness == "strict"
+
+    def test_language_config(self):
+        config = Config()
+        py_config = config.languages.get_language_config("python")
+        assert py_config is not None
+        assert py_config.enabled is True
+
+    def test_strictness_profiles(self):
+        config = Config()
+        permissive = config.strictness_profiles.get_profile("permissive")
+        assert permissive.check_style is False
+        strict = config.strictness_profiles.get_profile("strict")
+        assert strict.check_performance is True
+
+
+class TestConfigLoader:
+    def test_load_default_config(self):
+        loader = ConfigLoader()
+        config = loader.load()
+        assert isinstance(config, Config)
+
+    def test_find_config_files_nonexistent(self):
+        loader = ConfigLoader("/nonexistent/path.yaml")
+        path, _global_path = loader.find_config_files()
+        assert path is None