* Add route for getting output logs

* Include ComfyUI version

* Move to own function

* Changed to memory logger

* Unify logger setup logic

* Fix get version git fallback

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Co-authored-by: pythongosssss <125205205+pythongosssss@users.noreply.github.com>

* swap legacy sdv15 link

* swap v15 ckpt examples to safetensors

* link the fp16 copy of the model by default

fix: potential error of undefined variable

https://github.com/comfyanonymous/ComfyUI/discussions/4650

Currently, if a graph partially fails validation (i.e. some outputs are
valid while others have links from missing nodes), the execution loop
could get an exception resulting in server lockup.

This isn't actually possible to reproduce via the default UI, but is a
potential issue for people using the API to construct invalid graphs.

Rework IPEX check for future inclusion of XPU into Pytorch upstream and do a bit more optimization of ipex.optimize(). (#4562)

* Fix task.status.status_str caused by 2666 regression

* fix

* fix

This code automatically forces upcasting attention for MacOS versions 14.5 and 14.6. My computer returns the string "14.6.1" for `platform.mac_ver()[0]`, so this generalizes the comparison to catch more versions.

I am running MacOS Sonoma 14.6.1 (latest version) and was seeing black image generation on previously functional workflows after recent software updates. This PR solved the issue for me.

See comfyanonymous/ComfyUI#3521

This change fixes a bug where non-constant values could be passed to the
IS_CHANGED function. This would result in workflows taking an extra
execution before they acted as if they were cached.

The actual change is like 4 characters -- the rest is adding unit tests.