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>

hosts/ocaml/bin/mcp_tree.ml

@@ -609,7 +609,7 @@ let rec handle_tool name args =
       "render.sx"; "core-signals.sx"; "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";
-      "cssx.sx";
+      "cssx.sx"; "tw-layout.sx"; "tw-type.sx"; "tw.sx";
       "boot-helpers.sx"; "hypersx.sx"; "harness.sx"; "harness-reactive.sx";
       "harness-web.sx"; "engine.sx"; "orchestration.sx"; "boot.sx";
     ] in