Update CLAUDE.md.

Fix stale frontend build description (Snowpack/Parcel were replaced
with esbuild), document the absence of a test suite and the Ant
esbuild target's rebuild-skipping behavior, and add verified
architecture details (Post subclasses, visibility model, template
layout, deployment flow).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Change-Id: Ib0757ac359967ae37845605e9b507ea4f7576ae2
1 file changed