Add shared-data and bundle invalidation signals, and have handles publish them automatically for SAB and graph mutations.
Document the raw core worker protocol in a dedicated VitePress site and simplify the glTF import and picking example.
Amp-Thread-ID: https://ampcode.com/threads/T-01a01ff8-b91f-724f-8952-f07c6b5042fd
Co-authored-by: Heaust Azure <heaust.azure@gmail.com>