fix(admin,api): 上分超额提示而非静默截断，并返回中文业务错误

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/admin/src/composables/useAdminPlayerTransfer.ts

@@ -2,6 +2,7 @@ import { ref, computed } from 'vue';
 import { ElMessage } from 'element-plus';
 import api from '../api';
 import { useAdminLocale } from './useAdminLocale';
+import { resolveApiError } from '../i18n/form-validation';
 import {
   depositAmountCap,
   parsePlayerAvailable,
@@ -36,6 +37,20 @@ export function useAdminPlayerTransfer(onSuccess?: () => void | Promise<void>) {
 
   const transferAmountDisabled = computed(() => transferAmountRange.value.max === 0);
 
+  /** 有上限时超出额度（勿用 el-input-number :max，否则会静默截断到上限） */
+  const transferAmountExceedsCap = computed(() => {
+    const max = transferAmountRange.value.max;
+    if (max === undefined) return false;
+    return transferAmount.value > max;
+  });
+
+  const transferAmountCapError = computed(() => {
+    if (!transferAmountExceedsCap.value) return '';
+    return transferType.value === 'deposit'
+      ? t('err.insufficient_credit')
+      : t('transfer.context.withdraw_exceed');
+  });
+
   function transferTitle() {
     const name = transferTarget.value?.username ?? transferTarget.value?.id ?? '';
     return transferType.value === 'deposit'
@@ -63,8 +78,7 @@ export function useAdminPlayerTransfer(onSuccess?: () => void | Promise<void>) {
         transferAmount.value = cap > 0 ? Math.min(100, cap) : 0;
       }
     } catch (e: unknown) {
-      const err = e as { response?: { data?: { error?: string } } };
-      ElMessage.error(err.response?.data?.error ?? t('msg.load_failed'));
+      ElMessage.error(resolveApiError(e, t, 'msg.load_failed'));
       transferVisible.value = false;
     } finally {
       transferContextLoading.value = false;
@@ -105,10 +119,7 @@ export function useAdminPlayerTransfer(onSuccess?: () => void | Promise<void>) {
       transferVisible.value = false;
       await onSuccess?.();
     } catch (e: unknown) {
-      const err = e as { response?: { data?: { error?: string } } };
-      const fallback =
-        transferType.value === 'deposit' ? t('msg.topup_failed') : t('msg.transfer_failed');
-      ElMessage.error(err.response?.data?.error ?? fallback);
+      ElMessage.error(resolveApiError(e, t, transferType.value === 'deposit' ? 'msg.topup_failed' : 'msg.transfer_failed'));
     } finally {
       transferLoading.value = false;
     }
@@ -125,6 +136,8 @@ export function useAdminPlayerTransfer(onSuccess?: () => void | Promise<void>) {
     transferContextLoading,
     transferAmountRange,
     transferAmountDisabled,
+    transferAmountExceedsCap,
+    transferAmountCapError,
     transferTitle,
     openTransfer,
     submitTransfer,