fix wxpay config contract and h5 scene info

frontend/src/components/payment/__tests__/providerConfig.spec.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest'
+import { PROVIDER_CONFIG_FIELDS } from '@/components/payment/providerConfig'
+
+function findField(key: string) {
+  const fields = PROVIDER_CONFIG_FIELDS.wxpay || []
+  return fields.find(field => field.key === key)
+}
+
+describe('PROVIDER_CONFIG_FIELDS.wxpay', () => {
+  it('keeps admin form validation aligned with backend-required credentials', () => {
+    expect(findField('publicKeyId')?.optional).toBeFalsy()
+    expect(findField('certSerial')?.optional).toBeFalsy()
+  })
+
+  it('exposes optional mp and H5 metadata fields for WeChat-specific flows', () => {
+    expect(findField('mpAppId')?.optional).toBe(true)
+    expect(findField('h5AppName')?.optional).toBe(true)
+    expect(findField('h5AppUrl')?.optional).toBe(true)
+  })
+})