Refactor and optimize code for improved readability and maintainability

config.py

@@ -0,0 +1,37 @@
+import os
+import folder_paths # type: ignore
+from typing import List
+
+class Config:
+    """Global configuration for LoRA Manager"""
+    
+    def __init__(self):
+        self.loras_roots = self._init_lora_paths()
+        self.templates_path = os.path.join(os.path.dirname(__file__), 'templates')
+        self.static_path = os.path.join(os.path.dirname(__file__), 'static')
+
+    def _init_lora_paths(self) -> List[str]:
+        """Initialize and validate LoRA paths from ComfyUI settings"""
+        paths = [path.replace(os.sep, "/") 
+                for path in folder_paths.get_folder_paths("loras") 
+                if os.path.exists(path)]
+        
+        if not paths:
+            raise ValueError("No valid loras folders found in ComfyUI configuration")
+        
+        return paths
+
+    def get_preview_static_url(self, preview_path: str) -> str:
+        """Convert local preview path to static URL"""
+        if not preview_path:
+            return ""
+            
+        for idx, root in enumerate(self.loras_roots, start=1):
+            if preview_path.startswith(root):
+                relative_path = os.path.relpath(preview_path, root)
+                return f'/loras_static/root{idx}/preview/{relative_path.replace(os.sep, "/")}'
+        
+        return ""
+
+# Global config instance
+config = Config()