Recompile all 26 .sxbc with define-library wrappers + fix eval/JIT

All 26 browser modules recompiled with define-library/import forms.
Compilation works without vm-compile-adapter (JIT pre-compilation
hangs with library wrappers in some JIT paths — skipped for now,
CEK compilation is ~34s total).

Key fixes:
- eval command: import-aware loop that handles define-library/import
  locally without touching the Python bridge pipe (avoids deadlock)
- compile-modules.js: skip vm-compile-adapter, bump timeout

2621/2621 OCaml tests passing.

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

shared/static/wasm/sx/harness.sx

@@ -1,4 +1,30 @@
 ;; Assert condition is truthy, error with message
+
+(define-library (sx harness)
+  (export
+    assert
+    assert=
+    default-platform
+    make-harness
+    harness-reset!
+    harness-log
+    harness-get
+    harness-set!
+    make-interceptor
+    install-interceptors
+    io-calls
+    io-call-count
+    io-call-nth
+    io-call-args
+    io-call-result
+    assert-io-called
+    assert-no-io
+    assert-io-count
+    assert-io-args
+    assert-io-result
+    assert-state)
+  (begin
+
 (define assert (fn (condition msg) (when (not condition) (error (or msg "Assertion failed")))))
 
 ;; Assert two values are equal
@@ -60,3 +86,9 @@
 
 ;; Assert a state key has the expected value
 (define assert-state :effects () (fn (session key expected) (let ((actual (harness-get session key))) (assert (equal? actual expected) (str "Expected state " key " to be " (str expected) " but got " (str actual))))))
+
+
+)) ;; end define-library
+
+;; Re-export to global namespace for backward compatibility
+(import (sx harness))