Choose the portable scene and export contract

[BrettReifs]

Question

What versioned Portable Scene Bundle and deterministic export contract should the Reference Implementation support? Decide how assets, semantic content, timing, accessibility, provenance, and revisions travel together; define deterministic SVG and transparent animation outputs; and set the boundary between in-process rendering and controlled external encoders without attempting native PowerPoint animation authoring.

[BrettReifs]

Deterministic exporters must specify coefficient dequantization and output rounding behavior for referenced fourier-path/v2 geometry so repeated SVG and animation exports remain byte- or frame-stable within the chosen contract.