fix: resolve CI mypy type checking issues

patternforge/src/patternforge/config.py

@@ -0,0 +1,59 @@
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+
+class Config:
+    def __init__(
+        self,
+        default_patterns: Path | None = None,
+        template_dir: Path | None = None,
+        language: str = "python",
+        indent_size: int = 4,
+        custom_config: dict[str, Any] | None = None,
+    ) -> None:
+        self._config: dict[str, Any] = {}
+        self._config_dir = Path.home() / ".config" / "patternforge"
+        self._config_dir.mkdir(parents=True, exist_ok=True)
+        self._patterns_dir = default_patterns or self._config_dir / "patterns"
+        self._templates_dir = template_dir or self._config_dir / "templates"
+        self._patterns_dir.mkdir(parents=True, exist_ok=True)
+        self._templates_dir.mkdir(parents=True, exist_ok=True)
+        if custom_config:
+            self._config.update(custom_config)
+
+    @classmethod
+    def load(cls, config_path: str | None = None) -> "Config":
+        config = cls()
+        if config_path and Path(config_path).exists():
+            with open(config_path) as f:
+                data = yaml.safe_load(f) or {}
+                config._config.update(data)
+        return config
+
+    @property
+    def patterns_dir(self) -> Path:
+        return self._patterns_dir
+
+    @property
+    def templates_dir(self) -> Path:
+        return self._templates_dir
+
+    def get(self, key: str, default: Any = None) -> Any:
+        return self._config.get(key, default)
+
+    def set(self, key: str, value: Any) -> None:
+        self._config[key] = value
+
+    def save(self, config_path: str | None = None) -> None:
+        path = Path(config_path) if config_path else self._config_dir / "config.yaml"
+        with open(path, "w") as f:
+            yaml.dump(self.to_dict(), f)
+
+    def to_dict(self) -> dict[str, Any]:
+        return {
+            "patterns_dir": str(self._patterns_dir),
+            "templates_dir": str(self._templates_dir),
+            **self._config,
+        }