Default ASL detection to WLASL auto backend

Add experimental WLASL I3D backend

Add sliding-window ASL phrase prototype

Expose rejected ASL candidates in intent

Speed up live ASL debug diagnostics

Use single 30-frame ASL upload inference

Align ASL inference with upstream model

Harden ASL confidence and LLM consistency

Integrate ASL TFLite model assets

Remove demo gloss prefill and harden no-detection flow

Expose stepwise ASL debug pipeline

Fix Gradio 6 video input handling

Add brick tests and CLI runners