feat: Add ApiTextOutputNode custom node for API executions

api_text_node.py

@@ -0,0 +1,28 @@
+class ApiTextOutputNode:
+    def __init__(self):
+        pass
+        
+    @classmethod
+    def INPUT_TYPES(s):
+        return {
+            "required": {
+                "text": ("STRING", {"forceInput": True}),
+            }
+        }
+
+    # Tells ComfyUI's API wrapper that this node yields valid execution data
+    OUTPUT_NODE = True
+    
+    RETURN_TYPES = ()
+    FUNCTION = "send_text_to_api"
+    CATEGORY = "Fast Preview"
+
+    def send_text_to_api(self, text):
+        print(f"[Fast Preview] Sending text string to API payload: {text}")
+        
+        # Returns empty tuple for standard routing, passes text to the UI/API layers
+        return {
+            "ui": {
+                "text": [text]
+            }
+        }