Initial release: toggle button for Run/Run (Instant) mode switching

Adds a one-click toggle button next to the queue button in the ComfyUI
action bar, restoring easy access to instant queue mode toggling.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

__init__.py

@@ -0,0 +1,10 @@
+"""
+Return Queue Logic - ComfyUI Extension
+
+Adds a toggle button to quickly switch between Run and Run (Instant) modes
+without needing to open the queue button dropdown menu.
+"""
+
+WEB_DIRECTORY = "./js"
+NODE_CLASS_MAPPINGS = {}
+NODE_DISPLAY_NAME_MAPPINGS = {}