keep UI wiring out of the API and MCP tool list

default crossfade to 6: measured to hold the scene together

cross-theme warning, crossfade, and a swap time bound to the clip

live preview at the same size as the clip, above it

strip the page down to the demo and two lines

rework the layout: two columns, no examples table, hardware notice

free-text steering via umt5-xxl

correct the empty_cache comment: autograd was the OOM

deliberate examples: near steer continues, far steer breaks

correct the performance copy against measurements

drop the SDPA backend override: it made no difference to peak memory

generate blocks under no_grad

force the memory-efficient SDPA backend on sm_120

log memory at the failing block instead of probing

release the world-decode cache before the block loop

probe VRAM headroom at the point of failure

disable expandable segments: they abort the ZeroGPU worker

probe: CUDA from a spawned thread inside a ZeroGPU worker

log worker tracebacks and the allocator config

surface worker errors instead of blocking on the frame queue

fix Gradio 6 API: theme/css on launch, drop show_download_button

LiveWan streaming demo on ZeroGPU