v1.4.2 — @UVUNIQUE was inert on a real REDCap (live-found)

Found on the first live run of v1.4.0 (pid 149, REDCap 17.0.6): every rule kind
parsed and attached correctly, but the injected config carried no
jsmoName on a form with three unique rules — so the browser had no AJAX
transport and the live duplicate check did nothing at all. Silently. The
post-save audit and the Validation scan still caught duplicates, so no data was
wrong; the headline as-you-type check simply never ran.

• Root cause. The transport was guarded with
  method_exists($this, 'initializeJavascriptModuleObject'). The External
  Modules framework exposes those methods through
  AbstractExternalModule::__call(), and method_exists() returns FALSE for
  a magic-proxied method — so the entire block was skipped, with no exception
  to notice. Now guarded with is_callable(), which honours __call() and is
  true for a directly-declared method too. Both framework shapes work.
• Why no test caught it. The test stub declares the methods, so
  method_exists() was true in the mock and false in production — the mock was
  more permissive than reality. tests/hook_php.php now carries a
  ProxyJsmoModule that serves both methods only through __call(),
  exactly as the real framework does, so this class of mistake cannot return.
• The empty catch was the other bug. A missing transport was swallowed,
  which is precisely what hid the diagnosis and violates the module's own rule
  that nothing fails silently. A missing/failing JSMO now logs
  uvalidate-no-unique-transport with the reason and the consequence ("the live
  duplicate check is inert on this page; the post-save audit and the Validation
  scan still apply"). The client still fails open and never traps a save.
• tests/hook_php.php 197→205.

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Universal Field Validator is a REDCap external module. Rule kinds: @UVALIDATE (check-character / regex), @UVASSERT (cross-field constraints), @UVREQUIRED (conditional required), @UVUNIQUE (no duplicates across records), @UVCHOICES (dynamic choice filtering).

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