fix: resolve CI test failures

- Added ruff and mypy installation to CI workflow
- Removed deprecated license classifier from pyproject.toml
- Added pytest conftest.py for proper test discovery
- Fixed test paths in CI to match actual test file locations
- All 46 tests pass locally

tests/unit/test_config.py

@@ -1,4 +1,4 @@
-"""Tests for configuration management."""
+"""Tests for configuration."""
 
 import os
 import tempfile
@@ -15,86 +15,100 @@ class TestConfig:
 
     def test_default_values(self):
         """Test default configuration values."""
-        cfg = Config()
-        assert cfg.port == 8080
-        assert cfg.host == "0.0.0.0"
-        assert cfg.delay == 0
-        assert cfg.random_delay is False
-        assert cfg.seed == 42
-        assert cfg.validate_requests is True
+        config = Config()
+        assert config.port == 8080
+        assert config.host == "0.0.0.0"
+        assert config.delay == 0
+        assert config.random_delay is False
+        assert config.seed == 42
+        assert config.validate_requests is True
+        assert config.validate_responses is False
+        assert config.strict_validation is False
 
     def test_load_from_dict(self):
-        """Test loading config from dictionary."""
-        cfg = Config()
-        cfg.port = 3000
-        cfg.host = "localhost"
-        assert cfg.port == 3000
-        assert cfg.host == "localhost"
+        """Test creating config with dict values."""
+        config = Config(
+            port=3000,
+            host="127.0.0.1",
+            delay=100,
+            seed=123,
+        )
+        assert config.port == 3000
+        assert config.host == "127.0.0.1"
+        assert config.delay == 100
+        assert config.seed == 123
 
     def test_to_dict(self):
         """Test converting config to dictionary."""
-        cfg = Config()
-        cfg.port = 9000
-        cfg.host = "127.0.0.1"
-        cfg.delay = 100
-
-        d = cfg.to_dict()
+        config = Config(port=9000, host="localhost")
+        d = config.to_dict()
         assert d["port"] == 9000
-        assert d["host"] == "127.0.0.1"
-        assert d["delay"] == 100
+        assert d["host"] == "localhost"
+        assert "delay" in d
+        assert "seed" in d
 
     def test_load_from_env(self):
         """Test loading config from environment variables."""
         os.environ["MOCKAPI_PORT"] = "5000"
-        os.environ["MOCKAPI_HOST"] = "0.0.0.0"
+        os.environ["MOCKAPI_HOST"] = "127.0.0.1"
+        os.environ["MOCKAPI_SEED"] = "999"
 
-        cfg = Config.load()
-        assert cfg.port == 5000
-        assert cfg.host == "0.0.0.0"
+        config = load_config()
+
+        assert config.port == 5000
+        assert config.host == "127.0.0.1"
+        assert config.seed == 999
 
         del os.environ["MOCKAPI_PORT"]
         del os.environ["MOCKAPI_HOST"]
+        del os.environ["MOCKAPI_SEED"]
 
     def test_load_from_file(self):
         """Test loading config from YAML file."""
+        config_data = {
+            "port": 7000,
+            "host": "0.0.0.0",
+            "delay": 200,
+            "random_delay": True,
+            "seed": 456,
+        }
+
         with tempfile.NamedTemporaryFile(
             mode="w", suffix=".yaml", delete=False
         ) as f:
-            yaml.dump(
-                {
-                    "port": 8888,
-                    "host": "localhost",
-                    "delay": 200,
-                    "seed": 123,
-                },
-                f,
-            )
-            f.flush()
+            yaml.dump(config_data, f)
+            temp_path = f.name
 
-            cfg = Config.load(config_path=f.name)
-            assert cfg.port == 8888
-            assert cfg.host == "localhost"
-            assert cfg.delay == 200
-            assert cfg.seed == 123
-
-            Path(f.name).unlink()
+        try:
+            config = load_config(temp_path)
+            assert config.port == 7000
+            assert config.host == "0.0.0.0"
+            assert config.delay == 200
+            assert config.random_delay is True
+            assert config.seed == 456
+        finally:
+            os.unlink(temp_path)
 
     def test_env_overrides_file(self):
         """Test that environment variables override file config."""
+        config_data = {"port": 7000, "host": "0.0.0.0"}
+
         with tempfile.NamedTemporaryFile(
             mode="w", suffix=".yaml", delete=False
         ) as f:
-            yaml.dump({"port": 8888}, f)
-            f.flush()
+            yaml.dump(config_data, f)
+            temp_path = f.name
 
-            os.environ["MOCKAPI_PORT"] = "9999"
-            cfg = Config.load(config_path=f.name)
-            assert cfg.port == 9999
+        os.environ["MOCKAPI_PORT"] = "9000"
 
+        try:
+            config = load_config(temp_path)
+            assert config.port == 9000
+        finally:
+            os.unlink(temp_path)
             del os.environ["MOCKAPI_PORT"]
-            Path(f.name).unlink()
 
     def test_load_config_default_path(self):
-        """Test load_config convenience function."""
-        cfg = load_config()
-        assert isinstance(cfg, Config)
+        """Test load_config with no arguments."""
+        config = load_config()
+        assert isinstance(config, Config)