giles 6bd45daed6 hydrate-island: clear SSR children, render fresh DOM, append to island ...

Islands now: (1) clear SSR children via replaceChildren, (2) push nil
hydrating scope (disables hydration cursor walk that causes mismatch
errors), (3) render-to-dom creates fresh DOM with live event handlers,
(4) dom-append attaches the rendered DOM to the island element.

This fixes the hydrate-mismatch:div error caused by SSR/client attribute
differences (~tw generates different class strings server vs client).

NOTE: needs WASM rebuild (sx_build target=wasm) to compile boot.sxbc.
The .sx source is updated but the bytecoded module is stale.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-16 14:00:12 +00:00

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