The folk-flows-app sub-build imports Automerge which requires WASM support.
Added wasm() plugin, esnext target, and Automerge alias to the sub-build config.
Also adds folk-socials-canvas.ts and socials-canvas.css that were on the server
but missing from git, causing the vite build to fail.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
