Initial upload: DevDash CLI with TUI dashboard

src/config/config_manager.py

@@ -0,0 +1,26 @@
+import json
+import os
+from pathlib import Path
+from src.config.settings import Settings
+
+
+class ConfigManager:
+    def __init__(self, config_path: str = None):
+        if config_path is None:
+            config_path = os.environ.get(
+                "DEVDASH_CONFIG",
+                str(Path.home() / ".devdash" / "config.json")
+            )
+        self.config_path = Path(config_path)
+
+    def load_config(self) -> Settings:
+        if self.config_path.exists():
+            with open(self.config_path) as f:
+                data = json.load(f)
+                return Settings(**data)
+        return Settings()
+
+    def save_config(self, settings: Settings) -> None:
+        self.config_path.parent.mkdir(parents=True, exist_ok=True)
+        with open(self.config_path, "w") as f:
+            json.dump(settings.model_dump(), f, indent=2)