fix: hydrate realtime conversations before rendering

frontend/app/javascript/dashboard/store/modules/specs/conversations/actions.spec.js

@@ -70,6 +70,31 @@ describe('#actions', () => {
         ['contacts/SET_CONTACT_ITEM', { id: 1, name: 'Contact 1' }],
       ]);
     });
+    it('hydrates messages returned with the conversation', async () => {
+      const messages = [{ id: 2, conversation_id: 1, content: 'hello' }];
+      axios.get.mockResolvedValue({
+        data: {
+          id: 1,
+          messages,
+          meta: { sender: { id: 1, name: 'Contact 1' } },
+        },
+      });
+
+      await actions.getConversation({ commit }, 1);
+
+      expect(commit.mock.calls).toEqual([
+        [
+          types.UPDATE_CONVERSATION,
+          {
+            id: 1,
+            messages,
+            meta: { sender: { id: 1, name: 'Contact 1' } },
+          },
+        ],
+        [types.SET_MISSING_MESSAGES, { id: 1, data: messages }],
+        ['contacts/SET_CONTACT_ITEM', { id: 1, name: 'Contact 1' }],
+      ]);
+    });
     it('sends correct actions if API is error', async () => {
       axios.get.mockRejectedValue({ message: 'Incorrect header' });
       await actions.getConversation({ commit });
@@ -957,6 +982,20 @@ describe('#addMentions', () => {
       expect(localDispatch).not.toHaveBeenCalled();
     });
 
+    it('hydrates a realtime conversation when its event has no messages', async () => {
+      const localCommit = vi.fn();
+      const localDispatch = vi.fn().mockResolvedValue({ id: 42 });
+      const data = { id: 42, messages: [] };
+
+      await actions.setActiveChat(
+        { commit: localCommit, dispatch: localDispatch },
+        { data }
+      );
+
+      expect(localDispatch).toHaveBeenCalledWith('getConversation', 42);
+      expect(localCommit).toHaveBeenCalledWith(types.SET_CHAT_DATA_FETCHED, 42);
+    });
+
     it('should commit SET_CHAT_DATA_FETCHED by ID, not mutate the data object directly (race condition fix)', async () => {
       const localCommit = vi.fn();
       const localDispatch = vi.fn().mockResolvedValue();