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-impact-subpack/__init__.py

@@ -0,0 +1,38 @@
+"""
+@author: Dr.Lt.Data
+@title: Impact Subpack
+@nickname: Impact Subpack
+@description: This extension provides UltralyticsDetectorProvider node
+"""
+
+import importlib
+import logging
+
+version_code = [1, 3, 5]
+version_str = f"V{version_code[0]}.{version_code[1]}" + (f'.{version_code[2]}' if len(version_code) > 2 else '')
+logging.info(f"### Loading: ComfyUI-Impact-Subpack ({version_str})")
+
+node_list = [
+    "subpack_nodes",
+]
+
+NODE_CLASS_MAPPINGS = {}
+NODE_DISPLAY_NAME_MAPPINGS = {}
+
+for module_name in node_list:
+    imported_module = importlib.import_module(".modules.{}".format(module_name), __name__)
+
+    NODE_CLASS_MAPPINGS = {**NODE_CLASS_MAPPINGS, **imported_module.NODE_CLASS_MAPPINGS}
+    NODE_DISPLAY_NAME_MAPPINGS = {**NODE_DISPLAY_NAME_MAPPINGS, **imported_module.NODE_DISPLAY_NAME_MAPPINGS}
+
+__all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS"]
+
+try:
+    import cm_global
+    cm_global.register_extension('ComfyUI-Impact-Subpack',
+                                 {'version': version_code,
+                                  'name': 'Impact Subpack',
+                                  'nodes': set(NODE_CLASS_MAPPINGS.keys()),
+                                  'description': 'This extension provides UltralyticsDetectorProvider node.', })
+except:
+    pass