feat(brand): 聊天页 sxwz 模式下输入框左移 172px

- ChatPage 接入 useBrand，brand === 'sxwz' 时主容器和输入框 translate-x-[-172px]
- 退出对话回欢迎页时同步关闭 artifacts 面板

frontend/src/app/workspace/chats/[thread_id]/page.tsx

@@ -28,6 +28,7 @@ import { MessageList } from "@/components/workspace/messages";
 import { ThreadContext } from "@/components/workspace/messages/context";
 import { Tooltip } from "@/components/workspace/tooltip";
 import { useSpecificChatMode } from "@/components/workspace/use-chat-mode";
+import { useBrand } from "@/core/brand/provider";
 import { Welcome } from "@/components/workspace/welcome";
 import { getAPIClient } from "@/core/api";
 import { sanitizeArtifactPaths } from "@/core/artifacts/utils";
@@ -48,6 +49,7 @@ import motivationSlogans from "./motivation-slogans.json";
 
 export default function ChatPage() {
   const { t } = useI18n();
+  const { brand } = useBrand();
   useSpecificChatMode();
   const [sloganIndex, setSloganIndex] = useState(0);
   const [settings, setSettings] = useLocalSettings();
@@ -345,6 +347,7 @@ export default function ChatPage() {
         className={cn(
           "m-auto flex h-screen min-h-svh overflow-hidden rounded-t-[20px] transition-[width] duration-300 ease-in-out",
           artifactsOpen ? "w-full" : "w-[70%]",
+          brand === "sxwz" && artifactsOpen === false && "translate-x-[-172px]",
         )}
       >
         <div className="relative flex size-full min-h-0 justify-between rounded-t-[20px]">
@@ -374,6 +377,7 @@ export default function ChatPage() {
                         isChatting: false,
                       });
                       router.replace(`/workspace/chats/${threadId}?is_chatting=false`)
+                      setArtifactsOpen(false);
                     }
                     }
                   >
@@ -575,6 +579,7 @@ export default function ChatPage() {
             className={cn(
               "pointer-events-auto relative w-full max-w-[720px]",
               showWelcomeStyle && "-translate-y-[calc(50vh-96px)]",
+              brand === "sxwz" && "-translate-x-[172px]"
             )}
           >
             {!(showWelcomeStyle && thread.isThreadLoading) ? (