implement seamless automatic OAuth flow with callback handling

__init__.py

@@ -11,3 +11,20 @@ NODE_CLASS_MAPPINGS.update(SETUP_CLASS)
 NODE_DISPLAY_NAME_MAPPINGS = {}
 NODE_DISPLAY_NAME_MAPPINGS.update(RUN_DISPLAY)
 NODE_DISPLAY_NAME_MAPPINGS.update(SETUP_DISPLAY)
+
+# Register OAuth callback route with ComfyUI server
+def register_oauth_routes():
+    """Register OAuth callback routes with ComfyUI's PromptServer"""
+    try:
+        from server import PromptServer
+        from .oauth_handler import handle_oauth_callback
+        
+        # Add the OAuth callback route
+        PromptServer.instance.app.router.add_get('/oauth/dropbox/callback', handle_oauth_callback)
+        print("[DropSendNode] Registered OAuth callback route: /oauth/dropbox/callback")
+        
+    except Exception as e:
+        print(f"[DropSendNode] Warning: Could not register OAuth routes: {e}")
+
+# Register routes when the node is loaded
+register_oauth_routes()