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/views/AgentManager.vue

@@ -3,7 +3,7 @@ import { ref, onMounted, computed } from 'vue';
 import { useRouter } from 'vue-router';
 import { ElMessage, ElMessageBox } from 'element-plus';
 import { useAdminLocale } from '../composables/useAdminLocale';
-import { resolveFormError } from '../i18n/form-validation';
+import { resolveFormError, resolveApiError } from '../i18n/form-validation';
 import api from '../api';
 import { clearStaffSession } from '../stores/auth';
 
@@ -43,6 +43,7 @@ import AgentCreditContext from '../components/AgentCreditContext.vue';
 import { useAdminPlayerTransfer } from '../composables/useAdminPlayerTransfer';
 import {
   fetchAdminAgentCreditContext,
+  maxCreditIncreaseAmount,
   type AgentCreditAdjustContext,
 } from '../utils/agent-credit-context';
 
@@ -571,8 +572,7 @@ async function openCredit(userId: string) {
   try {
     creditContext.value = await fetchAdminAgentCreditContext(userId);
   } 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'));
     creditVisible.value = false;
   } finally {
     creditContextLoading.value = false;
@@ -584,6 +584,11 @@ async function submitCredit() {
     ElMessage.warning(t('msg.credit_zero'));
     return;
   }
+  const maxInc = maxCreditIncreaseAmount(creditContext.value);
+  if (creditForm.value.amount > 0 && maxInc !== undefined && creditForm.value.amount > maxInc) {
+    ElMessage.warning(t('err.insufficient_credit'));
+    return;
+  }
   creditLoading.value = true;
   try {
     await api.post(`/admin/agents/${editingId.value}/credit`, {
@@ -596,8 +601,7 @@ async function submitCredit() {
     load();
     refreshExpandedParents();
   } catch (e: unknown) {
-    const err = e as { response?: { data?: { error?: string } } };
-    ElMessage.error(err.response?.data?.error ?? t('msg.credit_adjust_failed'));
+    ElMessage.error(resolveApiError(e, t, 'msg.credit_adjust_failed'));
   } finally {
     creditLoading.value = false;
   }
@@ -737,6 +741,8 @@ const {
   transferContextLoading,
   transferAmountRange,
   transferAmountDisabled,
+  transferAmountExceedsCap,
+  transferAmountCapError,
   transferTitle,
   openTransfer,
   submitTransfer,
@@ -1340,11 +1346,10 @@ function creditTypeLabel(type: string) {
         <el-form-item :label="t('common.col_id')">
           <span>{{ transferTarget?.id }}</span>
         </el-form-item>
-        <el-form-item :label="t('user.field.amount')">
+        <el-form-item :label="t('user.field.amount')" :error="transferAmountCapError">
           <el-input-number
             v-model="transferAmount"
             :min="transferAmountRange.min"
-            :max="transferAmountRange.max"
             :disabled="transferAmountDisabled"
             :step="10"
             :precision="2"
@@ -1360,7 +1365,7 @@ function creditTypeLabel(type: string) {
         <el-button
           type="primary"
           :loading="transferLoading"
-          :disabled="transferAmountDisabled"
+          :disabled="transferAmountDisabled || transferAmountExceedsCap"
           @click="submitTransfer"
         >
           {{ t('common.confirm') }}