H-43: fix WEB Captain takeover E2E flow (#8)

* test(shangwutong): cover CID rename reliability

* H-43: fix WEB Captain takeover flow

* H-48: preserve compatible provider model

* H-49: make Captain takeover atomic

* H-50: prevent duplicate widget initialization

---------

Co-authored-by: Rogee <rogee@ipao.vip>

frontend/app/javascript/dashboard/store/modules/conversations/index.js

@@ -245,7 +245,8 @@ export const mutations = {
     if (!conversation?.id) return;
 
     const { allConversations } = _state;
-    const index = allConversations.findIndex(c => c.id === conversation.id);
+    const normalizedId = Number(conversation.id);
+    const index = allConversations.findIndex(c => Number(c.id) === normalizedId);
 
     if (index > -1) {
       const selectedConversation = allConversations[index];
@@ -256,8 +257,12 @@ export const mutations = {
       }
 
       const { messages, ...updates } = conversation;
-      allConversations[index] = { ...selectedConversation, ...updates };
-      if (_state.selectedChatId === conversation.id) {
+      allConversations[index] = {
+        ...selectedConversation,
+        ...updates,
+        id: selectedConversation.id,
+      };
+      if (Number(_state.selectedChatId) === normalizedId) {
         emitter.emit(BUS_EVENTS.SCROLL_TO_MESSAGE);
       }
     } else {