Merge remote-tracking branch 'origin/develop' into feat/whatsapp-call-ui

# Conflicts:
#	app/javascript/dashboard/components-next/message/bubbles/VoiceCall.vue
#	app/javascript/dashboard/composables/useCallSession.js
#	app/javascript/dashboard/helper/voice.js
#	config/locales/en.yml
#	enterprise/app/services/enterprise/whatsapp/providers/whatsapp_cloud_service.rb

app/javascript/dashboard/composables/useCallSession.js

@@ -1,8 +1,10 @@
 import { computed, ref, watch, onUnmounted, onMounted } from 'vue';
 import { useStore } from 'vuex';
+import { useI18n } from 'vue-i18n';
 import VoiceAPI from 'dashboard/api/channel/voice/voiceAPIClient';
 import TwilioVoiceClient from 'dashboard/api/channel/voice/twilioVoiceClient';
 import { useCallsStore } from 'dashboard/stores/calls';
+import { useAlert } from 'dashboard/composables';
 import {
   useWhatsappCallSession,
   sendWhatsappTerminateBeacon,
@@ -17,6 +19,7 @@ export function useCallSession() {
   const store = useStore();
   const callsStore = useCallsStore();
   const whatsappSession = useWhatsappCallSession();
+  const { t } = useI18n();
   const isJoining = ref(false);
   const callDuration = ref(0);
   const durationTimer = new Timer(elapsed => {
@@ -153,6 +156,11 @@ export function useCallSession() {
 
       return { conferenceSid: joinResponse?.conference_sid };
     } catch (error) {
+      useAlert(error?.response?.data?.error || t('CONTACT_PANEL.CALL_FAILED'));
+      if (error?.response?.status === 409) {
+        TwilioVoiceClient.endClientCall();
+        callsStore.dismissCall(callSid);
+      }
       // eslint-disable-next-line no-console
       console.error('Failed to join call:', error);
       // Drop any half-built WebRTC state so the next click starts fresh.