build-all.sh was missing the sx-platform.js → sx-platform-2.js copy, so the served file was stale (still requesting .sxbc.json instead of .sxbc). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The hydration bug root cause: .sxbc bytecoded modules break effect closures. Source-loaded modules work (15/15), bytecoded fail (10/15). Run: SX_TEST_BYTECODE=1 node hosts/ocaml/browser/test_wasm_native.js Failing: scoped static class, signal attr initial, reactive-spread, CSSX in island scope, reactive attr update. Also adds build-all.sh (full WASM pipeline) and sx_build target="wasm" MCP tool integration. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
