chore(voice): align FE files to incoming-pipeline base (UI changes consolidated to PR #14346)

app/javascript/dashboard/composables/useCallSession.js

@@ -1,14 +1,11 @@
 import { computed, ref, watch, onUnmounted, onMounted } from 'vue';
-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 Timer from 'dashboard/helper/Timer';
 
 export function useCallSession() {
   const callsStore = useCallsStore();
-  const { t } = useI18n();
   const isJoining = ref(false);
   const callDuration = ref(0);
   const durationTimer = new Timer(elapsed => {
@@ -77,11 +74,6 @@ 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);
       return null;