sunrise/docs/superpowers/plans/2026-10-30-summit-performance.md

Summit performance optimization

1. Measure the current summit overlay construction and profile continuous rendering at the same camera.
2. Extract pure geometry generation into an offline builder. Bake indexed geometry and material distances into a compressed binary asset, with source-hash freshness checks.
3. Load the asset alongside existing assets; runtime creates typed-array views, without recursive geometry generation or distance queries.
4. Reuse identical vertices without changing triangles. Evaluate single-surface regions without sampling unused material textures, keeping boundary blends unchanged.
5. Verify attribute equivalence, decoded binary validity, stale checks, walking tests, production build, and before/after browser rendering. Report measured construction timings separately from full startup or GPU FPS.