feat: add endpoints for retrieving checkpoint and unet roots from config

py/routes/checkpoint_routes.py

@@ -4,6 +4,7 @@ from aiohttp import web
 from .base_model_routes import BaseModelRoutes
 from ..services.checkpoint_service import CheckpointService
 from ..services.service_registry import ServiceRegistry
+from ..config import config
 
 logger = logging.getLogger(__name__)
 
@@ -41,6 +42,10 @@ class CheckpointRoutes(BaseModelRoutes):
         
         # Checkpoint info by name
         app.router.add_get(f'/api/{prefix}/info/{{name}}', self.get_checkpoint_info)
+        
+        # Checkpoint roots and Unet roots
+        app.router.add_get(f'/api/{prefix}/checkpoints_roots', self.get_checkpoints_roots)
+        app.router.add_get(f'/api/{prefix}/unet_roots', self.get_unet_roots)
     
     async def get_checkpoint_info(self, request: web.Request) -> web.Response:
         """Get detailed information for a specific checkpoint by name"""
@@ -102,4 +107,12 @@ class CheckpointRoutes(BaseModelRoutes):
             return web.json_response(versions)
         except Exception as e:
             logger.error(f"Error fetching checkpoint model versions: {e}")
-            return web.Response(status=500, text=str(e))
+            return web.Response(status=500, text=str(e))
+    
+    async def get_checkpoints_roots(self, request: web.Request) -> web.Response:
+        """Return the list of checkpoint roots from config"""
+        return web.json_response({"checkpoints_roots": config.checkpoints_roots})
+
+    async def get_unet_roots(self, request: web.Request) -> web.Response:
+        """Return the list of unet roots from config"""
+        return web.json_response({"unet_roots": config.unet_roots})