Merge develop into feat/voice-channel

Resolved conflicts:
- Voice.vue: Keep modern composition API version from develop
- ChannelItem.vue: Add voice channel feature flag check
- inboxes_controller.rb: Use allowed_channel_types method
- schema.rb: Add account_id index for voice channels
- inboxMgmt.json: Fix voice channel translations
- Note: Voice channel logic in base files removed in develop (moved to enterprise)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/javascript/dashboard/components/widgets/ChannelItem.vue

@@ -40,6 +40,11 @@ export default {
           this.enabledFeatures.channel_instagram && this.hasInstagramConfigured
         );
       }
+
+      if (key === 'voice') {
+        return this.enabledFeatures.channel_voice;
+      }
+
       return [
         'website',
         'twilio',
@@ -50,6 +55,7 @@ export default {
         'telegram',
         'line',
         'instagram',
+        'voice',
       ].includes(key);
     },
   },