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/x-flux-comfyui/setup.py

@@ -0,0 +1,20 @@
+import os
+if False:
+    try:
+        import git  
+        git.Git(".").clone("https://github.com/XLabs-AI/x-flux")
+    except:
+        
+        os.system("git clone https://github.com/XLabs-AI/x-flux" )
+#os.rename("x-flux", "xflux")    
+cur_dir = os.path.dirname(os.path.abspath(__file__))
+if False:
+    run = f'mv x-flux "{cur_dir}/xflux"'
+    if os.name == 'nt':
+        run = f'move x-flux "{cur_dir}\\xflux"'
+    os.system(run)
+if os.name == 'nt':
+    os.system(f'pip install -r "{cur_dir}\\requirements.txt"')
+else:
+    os.system(f'pip install -r "{cur_dir}/requirements.txt"')
+print("Succesfully installed")