Add Configurable Comfy Node for Multiple Endpoints

[emyasnikov]

This PR adds a configurable Comfy node capable of addressing all API endpoints from a single node.

Changes & Features:

• Unified Node for All Endpoints:
  • The node supports multiple endpoints dynamically, eliminating the need for separate nodes.

TODOs:

• Unused input fields should be hidden depending on the selected endpoint.
• Default values, min, and max constraints should be automatically updated per endpoint.