set LTX min length to 1 for t2i (Comfy-Org#5750)

At length=1, the LTX model can do txt2img and img2img with no other changes required.

Author: spacepxl

comfy_extras/nodes_lt.py

@@ -10,7 +10,7 @@ class EmptyLTXVLatentVideo:
     def INPUT_TYPES(s):
         return {"required": { "width": ("INT", {"default": 768, "min": 64, "max": nodes.MAX_RESOLUTION, "step": 32}),
                               "height": ("INT", {"default": 512, "min": 64, "max": nodes.MAX_RESOLUTION, "step": 32}),
-                              "length": ("INT", {"default": 97, "min": 9, "max": nodes.MAX_RESOLUTION, "step": 8}),
+                              "length": ("INT", {"default": 97, "min": 1, "max": nodes.MAX_RESOLUTION, "step": 8}),
                               "batch_size": ("INT", {"default": 1, "min": 1, "max": 4096})}}
     RETURN_TYPES = ("LATENT",)
     FUNCTION = "generate"