Fix CSSX styling: trampoline wiring + scope-emit!/emitted for adapter-html.sx

Root causes of missing CSSX classes in SSR:

1. _sx_trampoline_fn in sx_primitives.ml was never wired — call_any in
   HO forms (map/filter/for-each) returned unresolved Thunks, so callbacks
   like render-lambda-html's param binding never executed. Fixed in
   bootstrap.py FIXUPS: wire Sx_primitives._sx_trampoline_fn after eval_expr.

2. adapter-html.sx used (emit! ...) and (emitted ...) which are CEK special
   forms (walk kont for ScopeAccFrame), but scope-push!/scope-pop! use the
   hashtable. CEK frames and hashtable are two different scope systems.
   Fixed: adapter uses scope-emit!/scope-emitted (hashtable primitives).

3. env-* operations (env-has?, env-get, env-bind!, env-set!, env-extend,
   env-merge) only accepted Env type. adapter-html.sx passes Dict as env.
   Fixed: all env ops go through unwrap_env which handles Dict/Nil.

Also: fix merge conflict in sx/sx/geography/index.sx, remove duplicate
scope primitives from sx_primitives.ml (sx_server.ml registers them).

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

hosts/javascript/platform.py

@@ -1140,6 +1140,7 @@ PRIMITIVES_JS_MODULES: dict[str, str] = {
   }
   PRIMITIVES["scope-emit!"] = scopeEmit;
   PRIMITIVES["scope-peek"] = scopePeek;
+  PRIMITIVES["scope-emitted"] = sxEmitted;
 
   // ---- VM stack primitives ----
   // The VM spec (vm.sx) requires these array-like operations.