fix: re-fetch widget conversation status on reconnect (#14683)

When an inbox has **"Allow messages after conversation is resolved"**
disabled, the live-chat widget should hide the reply box once a
conversation is resolved — but users could still send a reply, silently
reopening it. This syncs the widget's conversation status on reconnect
so the reply box hides correctly.

## Closes
- CW-7272

## How to reproduce
1. Disable **Allow messages after conversation is resolved** on an
inbox.
2. Open the widget, then let its websocket drop (background tab / lose
network).
3. While disconnected, get the conversation resolved (e.g. auto-resolve
on inactivity).
4. Reconnect → reply box is still visible and a sent message reopens the
resolved conversation.

## Why
Reply-box hiding is gated on the widget's local status, updated via the
`conversation.status_changed` socket event. If the resolve happens while
disconnected, the event is missed — and on reconnect the widget only
re-synced messages, never the status, so it stayed stale at `open`.

## What changed
- `onReconnect` now also dispatches
`conversationAttributes/getAttributes` to refresh status after a missed
event.
- Added a spec covering the reconnect behavior.

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/widget/helpers/actionCable.js

@@ -36,6 +36,9 @@ class ActionCableConnector extends BaseActionCableConnector {
 
   onReconnect = () => {
     this.syncLatestMessages();
+    // Re-fetch conversation attributes so a status change (e.g. auto-resolve)
+    // that happened while disconnected is reflected, keeping the reply box state correct.
+    this.app.$store.dispatch('conversationAttributes/getAttributes');
   };
 
   setLastMessageId = () => {

app/javascript/widget/helpers/specs/actionCable.spec.js

@@ -0,0 +1,53 @@
+import { describe, it, beforeEach, afterEach, expect, vi } from 'vitest';
+import ActionCableConnector from '../actionCable';
+
+vi.mock('@rails/actioncable', () => ({
+  createConsumer: () => ({
+    subscriptions: { create: () => ({}) },
+    disconnect: vi.fn(),
+  }),
+}));
+
+describe('Widget ActionCableConnector', () => {
+  let app;
+  let mockDispatch;
+  let connector;
+
+  beforeEach(() => {
+    vi.useFakeTimers();
+    mockDispatch = vi.fn();
+    app = {
+      $store: {
+        dispatch: mockDispatch,
+        getters: {
+          getCurrentAccountId: 1,
+          getCurrentUserID: 1,
+        },
+      },
+    };
+    connector = new ActionCableConnector(app, 'test-token');
+    mockDispatch.mockClear();
+  });
+
+  afterEach(() => {
+    vi.clearAllMocks();
+    vi.useRealTimers();
+  });
+
+  it('registers the conversation.status_changed event handler', () => {
+    expect(connector.events['conversation.status_changed']).toBe(
+      connector.onStatusChange
+    );
+  });
+
+  it('re-fetches conversation attributes on reconnect so a status change missed while disconnected is reflected', () => {
+    connector.onReconnect();
+
+    expect(mockDispatch).toHaveBeenCalledWith(
+      'conversation/syncLatestMessages'
+    );
+    expect(mockDispatch).toHaveBeenCalledWith(
+      'conversationAttributes/getAttributes'
+    );
+  });
+});