Add custom nodes, Civitai loras (LFS), and vast.ai setup script

Includes 30 custom nodes committed directly, 7 Civitai-exclusive
loras stored via Git LFS, and a setup script that installs all
dependencies and downloads HuggingFace-hosted models on vast.ai.

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

custom_nodes/ComfyUI-Easy-Use/py/modules/dit/utils.py

@@ -0,0 +1,38 @@
+import torch
+from comfy import model_management
+
+def string_to_dtype(s="none", mode=None):
+	s = s.lower().strip()
+	if s in ["default", "as-is"]:
+		return None
+	elif s in ["auto", "auto (comfy)"]:
+		if mode == "vae":
+			return model_management.vae_device()
+		elif mode == "text_encoder":
+			return model_management.text_encoder_dtype()
+		elif mode == "unet":
+			return model_management.unet_dtype()
+		else:
+			raise NotImplementedError(f"Unknown dtype mode '{mode}'")
+	elif s in ["none", "auto (hf)", "auto (hf/bnb)"]:
+		return None
+	elif s in ["fp32", "float32", "float"]:
+		return torch.float32
+	elif s in ["bf16", "bfloat16"]:
+		return torch.bfloat16
+	elif s in ["fp16", "float16", "half"]:
+		return torch.float16
+	elif "fp8" in s or "float8" in s:
+		if "e5m2" in s:
+			return torch.float8_e5m2
+		elif "e4m3" in s:
+			return torch.float8_e4m3fn
+		else:
+			raise NotImplementedError(f"Unknown 8bit dtype '{s}'")
+	elif "bnb" in s:
+		assert s in ["bnb8bit", "bnb4bit"], f"Unknown bnb mode '{s}'"
+		return s
+	elif s is None:
+		return None
+	else:
+		raise NotImplementedError(f"Unknown dtype '{s}'")