Merge hs-f into architecture: JIT Phase 2/3 + native unwrap sweep + dict-eq fix

JIT Phase 2 (LRU eviction) + Phase 3 (manual reset), lib/jit.sx convenience layer,
21 host-* natives ABI-compatible with WASM kernel handles, dict-eq fix (structural
eq for plain dicts + Integer/Number in equal?), io-wait-event interceptor fix,
HS test runner unwrap shim for post-JIT-P1 value handles.

Conflicts resolved:
- tests/hs-run-filtered.js: combined arch's fake-timer block (for socket RPC tests)
  with hs-f's auto-unwrap shim
- shared/static/wasm/sx_browser.bc.js: took hs-f's regenerated bundle

hosts/ocaml/browser/sx_browser.ml

@@ -676,7 +676,11 @@ let () =
   let rec deep_equal a b =
     match a, b with
     | Nil, Nil -> true | Bool a, Bool b -> a = b
-    | Number a, Number b -> a = b | String a, String b -> a = b
+    | Integer a, Integer b -> a = b
+    | Number a, Number b -> a = b
+    | Integer a, Number b -> float_of_int a = b
+    | Number a, Integer b -> a = float_of_int b
+    | String a, String b -> a = b
     | Symbol a, Symbol b -> a = b | Keyword a, Keyword b -> a = b
     | (List a | ListRef { contents = a }), (List b | ListRef { contents = b }) ->
       List.length a = List.length b && List.for_all2 deep_equal a b