Add hs-htmx module to WASM build — htmx activation was missing

The htmx-boot-subtree! function (defined in lib/hyperscript/htmx.sx)
was never loaded in the browser because hs-htmx.sx wasn't in the
bundle or compile-modules lists. Added to:
- bundle.sh: copy htmx.sx as hs-htmx.sx to dist
- compile-modules.js: compile to hs-htmx.sxbc, add to deps and lazy list

This was the root cause of "Load Content" button not working —
hx-* attributes were never activated because htmx-boot-subtree!
was undefined.

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

shared/static/wasm/sx/module-manifest.json

@@ -1062,6 +1062,75 @@
       "hs-boot-subtree!"
     ]
   },
+  "hs-htmx": {
+    "file": "hs-htmx.sxbc",
+    "deps": [
+      "hs-tokenizer",
+      "hs-parser",
+      "hs-compiler",
+      "hs-runtime",
+      "hs-integration"
+    ],
+    "exports": [
+      "HX-CONFIG-DEFAULTS",
+      "HX-REQUEST-CLASS",
+      "url-encode-params",
+      "sx-url-with-params",
+      "hx-element-config",
+      "hx-walk-inherited",
+      "hx-resolve-attr",
+      "hx-verb-info",
+      "hx-default-trigger",
+      "hx-parse-time",
+      "hx-parse-trigger",
+      "hx-resolve-target",
+      "hx-normalize-swap-mode",
+      "hx-parse-swap-spec",
+      "hx-swap!",
+      "hx-select-fragment",
+      "hx-element-source-id",
+      "hx-form-values",
+      "hx-collect-params",
+      "hx-build-headers",
+      "hx-request",
+      "hx-process-oob!",
+      "hx-process-partials!",
+      "hx-parse-status-modifiers",
+      "hx-status-matches?",
+      "hx-parse-status-rules",
+      "hx-match-status",
+      "hx-handle-history!",
+      "hx-indicator-on!",
+      "hx-indicator-off!",
+      "hx-disable-inputs!",
+      "hx-enable-inputs!",
+      "hx-confirm?",
+      "hx-validate-form?",
+      "hx-parse-sync-spec",
+      "hx-sync-resolve-target",
+      "hx-sync-check!",
+      "hx-sync-complete!",
+      "hx-dispatch!",
+      "hx-strip-outer",
+      "hx-do-swap",
+      "hx-make-handler",
+      "hx-wrap-debounce",
+      "hx-wrap-throttle",
+      "hx-wrap-changed",
+      "hx-register-trigger!",
+      "htmx-activate!",
+      "HX-VERB-SELECTORS",
+      "htmx-boot!",
+      "hx-preload-cache",
+      "hx-preload-register!",
+      "hx-parse-sse-swap",
+      "hx-sse-connect!",
+      "htmx-boot-subtree!",
+      "hx-boost-link!",
+      "hx-boost-form!",
+      "hx-boost-subtree!"
+    ]
+  },
   "_entry": {
     "file": "boot.sxbc",
     "deps": [
@@ -1083,7 +1152,8 @@
       "hs-parser",
       "hs-compiler",
       "hs-runtime",
-      "hs-integration"
+      "hs-integration",
+      "hs-htmx"
     ]
   }
 }