v3.0.1 — FFLF crash fix

Patch release. Two small fixes on top of v3.0.0.

Fixes

• FFLF (First Frame / Last Frame keyframe interpolation) crashed with VideoDecoder.decode_and_stream() got an unexpected keyword argument 'frame_rate' on machines that pulled a post-rename upstream ltx-2-mlx. The runtime kwarg shim was being installed by every render path EXCEPT FFLF — fixed. Reported by @oo2music in #9.

• Update flow now auto-detects the configured upstream so the same update.js works for both stable and internal dev clones. No user-facing change for normal Pinokio installs.

How to update

Click Update in Pinokio. If you're still on v2.x, click Update twice — first click runs the old v2 script, second click runs v3.