Fix: capture-phase keydown beats browser scroll, event delegation for grid clicks (no onclick attrs)

Fix keyboard shortcuts (use Blocks js= param), clickable grid cells, cleaner button layout

Add keyboard shortcuts: arrow keys, space=noop, R=reset, N=random steps

Fix Play World layout: full-width grid, D-pad style buttons, collapsible code

Add Play World tab: interactive synthesized world simulator with colored grid, action buttons, random steps

Fix: pipeline type detection, planning video recursion, gpt-5.4 filter, per-type overview/detail

Add agent reasoning, solver scratchpad, planning videos tabs; auto-discover pipelines

Add HF_TOKEN support for persistent annotations + show existing annotations

Initial Gradio app for critiquing MARA results