Improved Design

Design adds performance and release gates

Deterministic benchmarks and a staging checklist now cover large files, collaboration, recovery, Prototypes, and exports.

Design now has enforceable algorithm benchmarks for 1,000 and 10,000 Layers, viewport queries, selection, Instances, nested Auto Layout, Frames, and working memory. A release checklist separates repository checks from database, browser, multiplayer, export-fidelity, and high-resolution image checks that require staging.