release: bump version to 0.3.0

- Refactor Redis backend connection handling and pool management
- Update algorithm implementations with improved type annotations
- Enhance config loader validation with stricter Pydantic schemas
- Improve decorator and middleware error handling
- Expand example scripts with better docstrings and usage patterns
- Add new 00_basic_usage.py example for quick start
- Reorganize examples directory structure
- Fix type annotation inconsistencies across core modules
- Update dependencies in pyproject.toml

tests/test_config_loader.py

@@ -86,7 +86,9 @@ class TestConfigLoaderEnv:
             "FASTAPI_TRAFFIC_RATE_LIMIT_WINDOW_SIZE": "60.0",
         }
 
-        with pytest.raises(ConfigurationError, match="Required field 'limit'"):
+        with pytest.raises(
+            ConfigurationError, match="Invalid value for 'limit': Field required"
+        ):
             loader.load_rate_limit_config_from_env(env_vars)
 
     def test_load_rate_limit_config_from_env_with_overrides(
@@ -351,7 +353,9 @@ class TestConfigLoaderJson:
         config_data = {"window_size": 60.0}
         json_file.write_text(json.dumps(config_data))
 
-        with pytest.raises(ConfigurationError, match="Required field 'limit'"):
+        with pytest.raises(
+            ConfigurationError, match="Invalid value for 'limit': Field required"
+        ):
             loader.load_rate_limit_config_from_json(json_file)