Fix: Allow media_path updates from REST API (#533)

Added media_path to the list of allowed properties for call updates via REST API.
Includes validation to ensure media_path values are one of: no-media, partial-media, or full-media.

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Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

lib/routes/api/accounts.js

@@ -308,7 +308,8 @@ function validateUpdateCall(opts) {
     'dtmf',
     'conferenceParticipantAction',
     'dub',
-    'boostAudioSignal'
+    'boostAudioSignal',
+    'media_path'
   ]
     .reduce((acc, prop) => (opts[prop] ? ++acc : acc), 0);
 
@@ -372,6 +373,9 @@ function validateUpdateCall(opts) {
       throw new DbErrorBadRequest('conferenceParticipantAction requires tag property when action is \'coach\'');
     }
   }
+  if (opts.media_path && !['no-media', 'partial-media', 'full-media'].includes(opts.media_path)) {
+    throw new DbErrorBadRequest('invalid media_path');
+  }
 }
 
 function validateTo(to) {