Wire hyperscript activation into browser boot pipeline

- orchestration.sx: add hs-boot-subtree! call to process-elements
- integration.sx: remove load-library! calls (browser loads via manifest)
- sx_vm.ml: add __resolve-symbol hook to OP_GLOBAL_GET for lazy loading
- compile-modules.js: add HS modules as lazy_deps in manifest

HS compilation works in browser (tokenize→parse→compile verified).
Activation pipeline partially working — hs-activate! needs debugging
(dom-get-data/dom-set-data interaction with WASM host-get on functions).

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

hosts/ocaml/lib/sx_vm.ml

@@ -514,7 +514,14 @@ and run vm =
             | None ->
               try Hashtbl.find vm.globals name with Not_found ->
                 try Sx_primitives.get_primitive name
-                with _ -> raise (Eval_error ("VM undefined: " ^ name))
+                with _ ->
+                  (* Try resolve hook — loads the library that exports this symbol *)
+                  (try
+                    let resolve_fn = Hashtbl.find vm.globals "__resolve-symbol" in
+                    ignore (Sx_runtime.sx_call resolve_fn [String name]);
+                    try Hashtbl.find vm.globals name
+                    with Not_found -> raise (Eval_error ("VM undefined: " ^ name))
+                  with Not_found -> raise (Eval_error ("VM undefined: " ^ name)))
           in
           push vm v
         | 21 (* OP_GLOBAL_SET *) ->