feat: add __main__ function with generic config retrieval

src/komconfig/__main__.py

@@ -0,0 +1,30 @@
+import argparse
+from src.komconfig import KomConfig
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Retrieve configuration values.")
+    parser.add_argument("key", type=str, help="The configuration key to retrieve.")
+    args = parser.parse_args()
+
+    config = KomConfig()
+
+    try:
+        config_dict = config.dict()
+        if isinstance(config_dict, dict):
+            value = config_dict.get(args.key, None)
+            if value is None:
+                print(f"Key '{args.key}' not found in the configuration.")
+            else:
+                try:
+                    print(str(value))
+                except Exception:
+                    print(repr(value))
+        else:
+            print("Configuration data is not in dictionary format.")
+    except Exception as e:
+        print(f"Error retrieving key '{args.key}': {e}")
+
+
+if __name__ == "__main__":
+    main()