make-tsx

Step 2 of the AI Video Editor pipeline — build the visual beats (Remotion TSX shots) over a project's master cut and bake a composited preview. Use when the user wants to add/edit overlays or full-screen animation segments, "make a shot / beat", implement an edit plan or a v2 update, retime a beat to the narration, re-render shots, or re-bake the video-N preview in this repo. Covers reading the plan +…