feat: improve Banban UI and binding diagnostics

banban-mini/src/pages/bind/index.tsx

@@ -511,7 +511,10 @@ export default function Bind() {
       scanType: ['qrCode', 'barCode'],
       success: (res) => {
         setIsScanning(false)
+        console.info('[bind] scanCode success response:', res)
+        console.info('[bind] scanCode raw result:', res.result || '')
         const parsed = parseBindingPayload(res.result || '')
+        console.info('[bind] scanCode parsed payload:', parsed)
         resetBindSessionState()
         if (parsed.deviceId) setDeviceId(parsed.deviceId)
         if (parsed.serialNumber) setSerialNumber(parsed.serialNumber)
@@ -523,6 +526,7 @@ export default function Bind() {
       },
       fail: (err) => {
         setIsScanning(false)
+        console.warn('[bind] scanCode failed response:', err)
         if (err.errMsg && err.errMsg.includes('cancel')) return
         Taro.showToast({
           title: '扫码失败，请重试',