feat:webrtc支持检测|房间检测|UI状态优化

chuan-next/src/components/webrtc/WebRTCTextReceiver.tsx

@@ -209,7 +209,7 @@ export const WebRTCTextReceiver: React.FC<WebRTCTextReceiverProps> = ({
               <div className="relative">
                 <Input
                   value={inputCode}
-                  onChange={(e) => setInputCode(e.target.value.replace(/[^A-Z0-9]/g, '').toUpperCase())}
+                  onChange={(e) => setInputCode(e.target.value.replace(/[^123456789ABCDEFGHIJKLMNPQRSTUVWXYZabcdefghijklmnpqrstuvwxyz]/g, ''))}
                   placeholder="请输入取件码"
                   className="text-center text-2xl sm:text-3xl tracking-[0.3em] sm:tracking-[0.5em] font-mono h-12 sm:h-16 border-2 border-slate-200 rounded-xl focus:border-emerald-500 focus:ring-emerald-500 bg-white/80 backdrop-blur-sm pb-2 sm:pb-4"
                   maxLength={6}