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-Pack/troubleshooting/TROUBLESHOOTING.md

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+## When a permission error occurs during the installation process (on Windows)
+
+* There are cases where the package you are trying to install is already being used by another custom node that has been loaded.
+    * This issue occurs only on Windows.
+* Please close ComfyUI and execute install.py directly using Python in the custom_nodes/ComfyUI-Impact-Pack directory.
+    * In case **portable** version:
+        1. goto **ComfyUI_windows_portable** directory in **cmd**
+        2. execute ```.\python_embeded\python -s -m custom_nodes\ComfyUI-Impact-Pack\install.py```
+    * In case **venv**:
+        1. activate venv
+        2. execute ```python -s -m custom_nodes\ComfyUI-Impact-Pack\install.py```
+    * Others:
+        1. Please modify the path of 'python' according to your Python environment.
+        2. execute ```(YOUR PYTHON) -s -m custom_nodes\ComfyUI-Impact-Pack\install.py```
+
+
+## If the nodes of the Impact Pack hang during execution
+
+* During the execution of processes related to dilation, issues like this may arise depending on the compatibility of the computer environment.
+* Please set `disable_gpu_opencv = True` in the `ComfyUI-Impact-Pack/impact-pack.ini` file. Occasionally, issues may arise when the OpenCV GPU mode is activated depending on the environment.
+
+    e.g.
+```
+[default]
+dependency_version = 17
+mmdet_skip = True
+sam_editor_cpu = False
+sam_editor_model = sam_vit_b_01ec64.pth
+custom_wildcards = /home/me/github/ComfyUI/custom_nodes/ComfyUI-Impact-Pack/custom_wildcards
+disable_gpu_opencv = True
+```
+
+## An issue has occurred with importing Ultralytics.
+```
+    AttributeError: 'Logger' object has no attribute 'reconfigure'
+
+    or 
+
+    AttributeError: 'Logger' object has no attribute 'encoding'
+```
+* Update `ComfyUI-Manager` to V1.1.2 or above
+
+
+## An issue has occurred about 'cv2'
+
+```
+    AttributeError: module 'cv2' has no attribute 'setNumThreads'
+```
+
+* Update 'opencv-python' and 'opencv-python-headless' to latest version
+    * Once you update to the latest version, you can also downgrade back to 4.6.0.66 if needed.
+    *  For the portable version, navigate to the portable installation directory in the command prompt, and enter the following command: 
+
+    ```
+    .\python_embeded\python.exe -m pip install -U opencv-python opencv-python-headless
+    ```
+
+    * When using the WAS node suite or reactor nodes, using the latest version may not work as expected. You can downgrade using the following command:
+
+    ```
+    .\python_embeded\python.exe -m pip install -U opencv-python==4.6.0.66 opencv-python-headless==4.6.0.66
+    ```
+
+
+## Destortion on Detailer
+
+* Please also note that this issue may be caused by a bug in xformers 0.0.18. If you encounter this problem, please try adjusting the guide_size parameter.
+
+![example](black1.png)
+
+![example](black2.png)
+* guide_size changed from 256 -> 192