feat(conversations): remove unread count feature flag (CW-7237) (#14610)

## Description

Make conversation unread counts always available at runtime by removing
account feature checks from the API endpoint, unread-count listener,
notifier, and ActionCable broadcast path.

Update the dashboard to fetch sidebar unread counts for the active
account without checking FEATURE_FLAGS.CONVERSATION_UNREAD_COUNTS, and
remove the now-unused store clear action that only supported the
disabled state.

Keep the feature entry in config/features.yml to preserve flag bit
order, but mark it enabled and deprecated so fresh installs default to
the always-on behavior while feature-management UI hides it.

Leave existing installation default rows untouched; no migration is
included, so upgraded installs may still store the old flag value but
runtime behavior no longer depends on it.

Update specs around the new always-on contract and remove obsolete
disabled-feature assertions.

Fixes # CW-7237

## Type of change

Please delete options that are not relevant.

- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality not to work as expected)
- [ ] This change requires a documentation update

## How Has This Been Tested?

Update specs around the new always-on contract and remove obsolete
disabled-feature assertions. Ran specs locally for the changes.


## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

app/javascript/dashboard/components-next/sidebar/Sidebar.vue

@@ -61,21 +61,9 @@ const hasAdvancedAssignment = computed(() => {
   );
 });
 
-const hasConversationUnreadCounts = computed(() => {
-  return isFeatureEnabledonAccount.value(
-    accountId.value,
-    FEATURE_FLAGS.CONVERSATION_UNREAD_COUNTS
-  );
-});
-
-const fetchConversationUnreadCounts = ([currentAccountId, isEnabled]) => {
+const fetchConversationUnreadCounts = currentAccountId => {
   if (!currentAccountId) return;
 
-  if (!isEnabled) {
-    store.dispatch('conversationUnreadCounts/clear');
-    return;
-  }
-
   store.dispatch('conversationUnreadCounts/get');
 };
 
@@ -200,7 +188,7 @@ onMounted(() => {
   store.dispatch('customViews/get', 'contact');
 });
 
-watch([accountId, hasConversationUnreadCounts], fetchConversationUnreadCounts, {
+watch(accountId, fetchConversationUnreadCounts, {
   immediate: true,
 });
 

app/javascript/dashboard/featureFlags.js

@@ -46,7 +46,6 @@ export const FEATURE_FLAGS = {
   COMPANIES: 'companies',
   ADVANCED_SEARCH: 'advanced_search',
   CONVERSATION_REQUIRED_ATTRIBUTES: 'conversation_required_attributes',
-  CONVERSATION_UNREAD_COUNTS: 'conversation_unread_counts',
 };
 
 export const PREMIUM_FEATURES = [

app/javascript/dashboard/helper/actionCable.js

@@ -13,7 +13,6 @@ import {
 } from 'dashboard/composables/useWhatsappCallSession';
 import { VOICE_CALL_PROVIDERS } from 'dashboard/helper/inbox';
 import { VOICE_CALL_DIRECTION } from 'dashboard/components-next/message/constants';
-import { FEATURE_FLAGS } from 'dashboard/featureFlags';
 
 const { isImpersonating } = useImpersonation();
 const UNREAD_COUNTS_REFETCH_THROTTLE_MS = 5000;
@@ -172,23 +171,10 @@ class ActionCableConnector extends BaseActionCableConnector {
   };
 
   fetchConversationUnreadCounts = () => {
-    if (!this.isConversationUnreadCountsEnabled()) return;
-
     this.lastUnreadCountsFetchAt = Date.now();
     this.app.$store.dispatch('conversationUnreadCounts/get');
   };
 
-  isConversationUnreadCountsEnabled = () => {
-    const accountId = this.app.$store.getters.getCurrentAccountId;
-    const isFeatureEnabled =
-      this.app.$store.getters['accounts/isFeatureEnabledonAccount'];
-
-    return isFeatureEnabled?.(
-      accountId,
-      FEATURE_FLAGS.CONVERSATION_UNREAD_COUNTS
-    );
-  };
-
   onTypingOn = ({ conversation, user }) => {
     const conversationId = conversation.id;
 

app/javascript/dashboard/helper/specs/actionCable.spec.js

@@ -30,7 +30,6 @@ describe('ActionCableConnector - Copilot Tests', () => {
         dispatch: mockDispatch,
         getters: {
           getCurrentAccountId: 1,
-          'accounts/isFeatureEnabledonAccount': vi.fn(() => true),
         },
       },
     };
@@ -89,21 +88,6 @@ describe('ActionCableConnector - Copilot Tests', () => {
       expect(mockDispatch).toHaveBeenCalledWith('conversationUnreadCounts/get');
     });
 
-    it('does not refetch unread counts when unread count feature is disabled', () => {
-      store.$store.getters[
-        'accounts/isFeatureEnabledonAccount'
-      ].mockReturnValue(false);
-
-      actionCable.onReceived({
-        event: 'conversation.unread_count_changed',
-        data: { account_id: 1 },
-      });
-
-      expect(mockDispatch).not.toHaveBeenCalledWith(
-        'conversationUnreadCounts/get'
-      );
-    });
-
     it('should throttle unread count refetches for repeated events', () => {
       vi.useFakeTimers();
       vi.setSystemTime(new Date('2026-01-01T00:00:00Z'));

app/javascript/dashboard/store/modules/conversationUnreadCounts.js

@@ -48,9 +48,6 @@ export const actions = {
       // Ignore errors so the sidebar can continue rendering without badges.
     }
   },
-  clear({ commit }) {
-    commit(types.SET_CONVERSATION_UNREAD_COUNTS, {});
-  },
 };
 
 export const mutations = {

app/javascript/dashboard/store/modules/specs/conversationUnreadCounts/actions.spec.js

@@ -39,15 +39,4 @@ describe('#actions', () => {
       expect(commit).not.toHaveBeenCalled();
     });
   });
-
-  describe('#clear', () => {
-    it('clears unread counts', () => {
-      actions.clear({ commit });
-
-      expect(commit).toHaveBeenCalledWith(
-        types.SET_CONVERSATION_UNREAD_COUNTS,
-        {}
-      );
-    });
-  });
 });