Fix: shape-safe TeaCache residuals + auto-reset + updated LTXBaseModel for ComfyUI latest releases

[elsung]

This update fixes a common TeaCache crash and makes the node work with the newest ComfyUI changes.

✅ What was broken

TeaCache sometimes crashed with WAN models because it tried to reuse old cached tensors even when the model shape changed.
This caused errors like:

Size of tensor a must match tensor b

✅ What this PR fixes

Stops crashes: TeaCache now checks the tensor shape before using cached data.

Auto-reset: Cache resets itself when shape changes or at step 0.

Safe residuals: Only adds cached data if the size matches.

More stable video runs: No more random failures when FPS or resolution changes.

LTXBaseModel updated (line 12 + line ~736): Adjusted imports and calls so TeaCache works with the latest ComfyUI updates.

✅ Why this helps

TeaCache stays fast but doesn’t break anymore, even with dynamic settings like different sizes, frames, or batch changes.

[horsten]

It's broken again, because of more changes to support LTXV-2. The best fix for now is probably to disable LTXV support entirely.