Refactor API endpoints to use '/api/lm/' prefix

- Updated all relevant routes in `stats_routes.py` and `update_routes.py` to include the new '/api/lm/' prefix for consistency.
- Modified API endpoint configurations in `apiConfig.js` to reflect the new structure, ensuring all CRUD and bulk operations are correctly routed.
- Adjusted fetch calls in various components and managers to utilize the updated API paths, including recipe, model, and example image operations.
- Ensured all instances of the old API paths were replaced with the new '/api/lm/' prefix across the codebase for uniformity and to prevent broken links.

web/comfyui/loras_widget_components.js

@@ -269,7 +269,7 @@ export class PreviewTooltip {
       this.currentLora = loraName;
       
       // Get preview URL
-      const response = await api.fetchApi(`/loras/preview-url?name=${encodeURIComponent(loraName)}`, {
+      const response = await api.fetchApi(`/lm/loras/preview-url?name=${encodeURIComponent(loraName)}`, {
         method: 'GET'
       });