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.

static/js/components/initialization.js

@@ -169,7 +169,7 @@ class InitializationManager {
      */
     pollProgress() {
         const checkProgress = () => {
-            fetch('/api/init-status')
+            fetch('/api/lm/init-status')
                 .then(response => response.json())
                 .then(data => {
                     this.handleProgressUpdate(data);