Playwright : new chat multi model test (#13402)

### What problem does this PR solve?

new test for chat multiple model and other chat parameters under
playwright

### Type of change

- [x] Other (please describe): new test/ data-testid

web/src/components/message-input/next.tsx

@@ -234,6 +234,7 @@ export function NextMessageInput({
                   variant="transparent"
                   className="rounded-sm border-0"
                   disabled={isUploading || sendLoading}
+                  data-testid="chat-detail-attach"
                 >
                   <Paperclip className="size-3.5" />
                   <span className="sr-only">Attach file</span>
@@ -248,6 +249,7 @@ export function NextMessageInput({
                 variant={enableThinking ? 'accent' : 'transparent'}
                 className="border-0 h-7 text-sm"
                 onClick={handleThinkingToggle}
+                data-testid="chat-detail-thinking-toggle"
               >
                 <Atom />
                 <span>Thinking</span>
@@ -261,6 +263,7 @@ export function NextMessageInput({
                 size="icon-xs"
                 className="border-0"
                 onClick={handleInternetToggle}
+                data-testid="chat-detail-internet-toggle"
               >
                 <Globe />
               </Button>
@@ -281,6 +284,7 @@ export function NextMessageInput({
                 onOk={(value) => {
                   setAudioInputValue(value);
                 }}
+                testId="chat-detail-audio-toggle"
               />
 
               <Button
@@ -288,6 +292,7 @@ export function NextMessageInput({
                 disabled={
                   sendDisabled || isUploading || sendLoading || !value.trim()
                 }
+                data-testid="chat-detail-send"
               >
                 <Send />
                 <span className="sr-only">Send message</span>