v3.5.4版本提交，修改api

apps/mini-user/src/pages/invoice-titles/index.tsx

@@ -26,6 +26,24 @@ const ACTION_ICONS = {
 
 type EditDraft = UpsertInvoiceTitleRequest & { id?: string };
 
+function FieldLabel({
+  children,
+  required,
+  hint,
+}: {
+  children: string;
+  required?: boolean;
+  hint?: string;
+}) {
+  return (
+    <Text className="invoice-title-label">
+      {required ? <Text className="invoice-title-star">*</Text> : null}
+      {children}
+      {hint ? <Text className="invoice-title-label-hint">{hint}</Text> : null}
+    </Text>
+  );
+}
+
 function TitleActionIcon({
   kind,
   label,
@@ -120,6 +138,15 @@ export default function InvoiceTitlesPage() {
       toast('企业抬头须填写税号');
       return;
     }
+    const email = draft.email?.trim() || '';
+    if (!email) {
+      toast('请填写接收邮箱（必填）');
+      return;
+    }
+    if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
+      toast('邮箱格式不正确');
+      return;
+    }
     setSaving(true);
     try {
       const payload: UpsertInvoiceTitleRequest = {
@@ -152,6 +179,10 @@ export default function InvoiceTitlesPage() {
   }
 
   async function setDefault(t: UserInvoiceTitleDto) {
+    if (!t.email?.trim()) {
+      toast('请先补全接收邮箱后再设为默认');
+      return;
+    }
     try {
       await request(`/trade/invoice-titles/${t.id}`, {
         method: 'PUT',
@@ -241,7 +272,7 @@ export default function InvoiceTitlesPage() {
             </Text>
 
             <View className="invoice-title-field">
-              <Text className="invoice-title-label">抬头类型</Text>
+              <FieldLabel required>抬头类型</FieldLabel>
               <View className="invoice-title-type-row">
                 {(['PERSONAL', 'ENTERPRISE'] as InvoiceTitleType[]).map((tp) => (
                   <Text
@@ -258,7 +289,7 @@ export default function InvoiceTitlesPage() {
             </View>
 
             <View className="invoice-title-field">
-              <Text className="invoice-title-label">抬头名称</Text>
+              <FieldLabel required>抬头名称</FieldLabel>
               <Input
                 className="invoice-title-input"
                 maxlength={128}
@@ -270,7 +301,7 @@ export default function InvoiceTitlesPage() {
 
             {draft.titleType === 'ENTERPRISE' ? (
               <View className="invoice-title-field">
-                <Text className="invoice-title-label">税号</Text>
+                <FieldLabel required>税号</FieldLabel>
                 <Input
                   className="invoice-title-input"
                   maxlength={32}
@@ -282,11 +313,13 @@ export default function InvoiceTitlesPage() {
             ) : null}
 
             <View className="invoice-title-field">
-              <Text className="invoice-title-label">接收邮箱</Text>
+              <FieldLabel required hint="必填，电子发票将发送至此">
+                接收邮箱
+              </FieldLabel>
               <Input
                 className="invoice-title-input"
                 maxlength={128}
-                placeholder="电子发票将发送至此邮箱"
+                placeholder="请填写邮箱（必填）"
                 value={draft.email || ''}
                 onInput={(e) => setDraft({ ...draft, email: e.detail.value })}
               />
@@ -311,7 +344,7 @@ export default function InvoiceTitlesPage() {
                   <Input
                     className="invoice-title-input"
                     maxlength={256}
-                    placeholder="专用发票需要，选填"
+                    placeholder="选填"
                     value={draft.addressPhone || ''}
                     onInput={(e) => setDraft({ ...draft, addressPhone: e.detail.value })}
                   />
@@ -321,7 +354,7 @@ export default function InvoiceTitlesPage() {
                   <Input
                     className="invoice-title-input"
                     maxlength={256}
-                    placeholder="专用发票需要，选填"
+                    placeholder="选填"
                     value={draft.bankAccount || ''}
                     onInput={(e) => setDraft({ ...draft, bankAccount: e.detail.value })}
                   />