Add model management and database

- use sqlalchemy + alembic + sqlite for db
- extract model data and previews
- endpoints for db interactions
- add tests

main.py

@@ -138,6 +138,8 @@ import server
 from server import BinaryEventTypes
 import nodes
 import comfy.model_management
+from app.database.db import init_db
+from app.model_processor import model_processor
 
 def cuda_malloc_warning():
     device = comfy.model_management.get_torch_device()
@@ -262,6 +264,7 @@ def start_comfyui(asyncio_loop=None):
 
     cuda_malloc_warning()
 
+    init_db()
     prompt_server.add_routes()
     hijack_progress(prompt_server)
 
@@ -269,6 +272,9 @@ def start_comfyui(asyncio_loop=None):
 
     if args.quick_test_for_ci:
         exit(0)
+    
+    # Scan for changed model files and update db
+    model_processor.run()
 
     os.makedirs(folder_paths.get_temp_directory(), exist_ok=True)
     call_on_start = None