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/rgthree-comfy/__update_comfy__.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+
+# A nicer output for git pulling custom nodes (and ComfyUI).
+# Quick shell version: ls | xargs -I % sh -c 'echo; echo %; git -C % pull'
+
+import os
+from subprocess import Popen, PIPE, STDOUT
+
+
+def pull_path(path):
+  p = Popen(["git", "-C", path, "pull"], stdout=PIPE, stderr=STDOUT)
+  output, error = p.communicate()
+  return output.decode()
+
+THIS_DIR=os.path.dirname(os.path.abspath(__file__))
+
+def show_output(output):
+  if output.startswith('Already up to date'):
+    print(f' \33[32m🗸 {output}\33[0m', end ='')
+  elif output.startswith('error:'):
+    print(f' \33[31m🞫 Error.\33[0m \n {output}')
+  else:
+    print(f' \33[33m🡅 Needs update.\33[0m \n {output}', end='')
+
+
+os.chdir(THIS_DIR)
+os.chdir("../")
+
+# Get the list or custom nodes, so we can format the output a little more nicely.
+custom_extensions = []
+custom_extensions_name_max = 0
+for directory in os.listdir(os.getcwd()):
+  if os.path.isdir(directory) and directory != "__pycache__": #and directory != "rgthree-comfy" :
+    custom_extensions.append({
+      'directory': directory
+    })
+    if len(directory) > custom_extensions_name_max:
+      custom_extensions_name_max = len(directory)
+
+if len(custom_extensions) == 0:
+  custom_extensions_name_max = 15
+else:
+  custom_extensions_name_max += 6
+
+# Update ComfyUI itself.
+label = "{0:.<{max}}".format('Updating ComfyUI ', max=custom_extensions_name_max)
+print(label, end = '')
+show_output(pull_path('../'))
+
+# If we have custom nodes, update them as well.
+if len(custom_extensions) > 0:
+  print(f'\nUpdating custom_nodes ({len(custom_extensions)}):')
+  for custom_extension in custom_extensions:
+    directory = custom_extension['directory']
+    label = "{0:.<{max}}".format(f'🗀  {directory} ', max=custom_extensions_name_max)
+    print(label, end = '')
+    show_output(pull_path(directory))