sx-tools: WASM kernel updates, TW/CSSX rework, content refresh, new debugging tools

Build tooling: updated OCaml bootstrapper, compile-modules, bundle.sh, sx-build-all.
WASM browser: rebuilt sx_browser.bc.js/wasm, sx-platform-2.js, .sxbc bytecode files.
CSSX/Tailwind: reworked cssx.sx templates and tw-layout, added tw-type support.
Content: refreshed essays, plans, geography, reactive islands, docs, demos, handlers.
New tools: bisect_sxbc.sh, test-spa.js, render-trace.sx, morph playwright spec.
Tests: added test-match.sx, test-examples.sx, updated test-tw.sx and web tests.

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

scripts/sx-build-all.sh

@@ -26,7 +26,8 @@ for f in signals.sx deps.sx router.sx page-helpers.sx freeze.sx \
          bytecode.sx compiler.sx vm.sx dom.sx browser.sx \
          adapter-html.sx adapter-sx.sx adapter-dom.sx \
          boot-helpers.sx hypersx.sx harness-reactive.sx harness-web.sx \
-         engine.sx orchestration.sx boot.sx cssx.sx; do
+         engine.sx orchestration.sx boot.sx cssx.sx \
+         tw-layout.sx tw-type.sx tw.sx; do
   if [ -f "shared/static/wasm/sx/$f" ]; then
     cp "shared/static/wasm/sx/$f" "hosts/ocaml/browser/dist/sx/"
   fi