- Wire up jit_call_hook in sx_browser.ml (same pattern as server)
- Deferred JIT: _jit_enabled flag, enabled after boot-init completes
(prevents "Undefined symbol" errors from compiling during .sx loading)
- enable-jit! native function called by sx-platform.js after boot
- sx-platform.js: async WASM kernel polling + JIT enable after init
- Error logging for JIT compile failures and runtime fallbacks
Performance: 858ms → 431ms (WASM CEK) → 101ms (WASM JIT)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
giles
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