feat(admin,api,player): 赛事分组管理、盘口独立页与多语言展示优化

- 管理端按联赛展示单场，新增赛事/单场流程与列表展开状态保持

- 盘口赔率迁至独立页面，保存按钮仅在有修改时高亮

- API 新增联赛列表与子场查询，按 locale 返回队名并修复编译

- 波胆其它选项与促销标签等 i18n 补齐，文案更易懂

apps/admin/src/components/LogoUrlField.vue

@@ -0,0 +1,103 @@
+<script setup lang="ts">
+import { ref, watch, computed } from 'vue';
+import CountryFlagSelect from './outright/CountryFlagSelect.vue';
+import {
+  countryFlagUrl,
+  resolveCountryCode,
+  type BuiltinCountry,
+} from '../data/builtinCountries';
+import { useAdminLocale } from '../composables/useAdminLocale';
+
+const props = defineProps<{
+  modelValue: string;
+  teamCode?: string;
+}>();
+
+const emit = defineEmits<{
+  'update:modelValue': [value: string];
+  pick: [country: BuiltinCountry];
+}>();
+
+const { t } = useAdminLocale();
+const countryCode = ref('');
+
+const isFlagUrl = computed(() => props.modelValue.includes('flagcdn.com'));
+const previewUrl = computed(() => props.modelValue.trim() || '');
+
+watch(
+  () => [props.modelValue, props.teamCode] as const,
+  ([url, code]) => {
+    if (url && !url.includes('flagcdn.com')) {
+      countryCode.value = '';
+      return;
+    }
+    countryCode.value = resolveCountryCode(code, url || null);
+  },
+  { immediate: true },
+);
+
+watch(countryCode, (code, prev) => {
+  if (!code && prev && isFlagUrl.value) {
+    emit('update:modelValue', '');
+  }
+});
+
+function onCountryPick(country: BuiltinCountry) {
+  emit('update:modelValue', countryFlagUrl(country));
+  emit('pick', country);
+}
+
+function onCustomUrlInput(value: string) {
+  emit('update:modelValue', value);
+}
+</script>
+
+<template>
+  <div class="logo-url-field">
+    <CountryFlagSelect
+      v-model="countryCode"
+      hide-preview
+      class="flag-part"
+      @pick="onCountryPick"
+    />
+    <el-input
+      :model-value="modelValue"
+      size="small"
+      :placeholder="t('matchEditor.ph.logo_url')"
+      clearable
+      class="url-part"
+      @update:model-value="onCustomUrlInput"
+    />
+    <img v-if="previewUrl" :src="previewUrl" alt="" class="logo-preview" loading="lazy" />
+  </div>
+</template>
+
+<style scoped>
+.logo-url-field {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+  min-width: 0;
+}
+
+.flag-part {
+  flex: 0 0 200px;
+  min-width: 0;
+}
+
+.url-part {
+  flex: 1;
+  min-width: 0;
+}
+
+.logo-preview {
+  flex-shrink: 0;
+  width: 32px;
+  height: 22px;
+  object-fit: contain;
+  border-radius: 3px;
+  background: #0d0d0d;
+  border: 1px solid #2a2a2a;
+}
+</style>

apps/admin/src/components/outright/CountryFlagSelect.vue

@@ -1,8 +1,9 @@
 <script setup lang="ts">
 import { computed, ref } from 'vue';
 import {
-  BUILTIN_COUNTRIES,
   countryFlagUrl,
+  countryDisplayName,
+  countryOptionLabel,
   getBuiltinCountry,
   searchBuiltinCountries,
   type BuiltinCountry,
@@ -13,6 +14,7 @@ const props = defineProps<{
   modelValue: string;
   size?: 'small' | 'default' | 'large';
   disabled?: boolean;
+  hidePreview?: boolean;
 }>();
 
 const emit = defineEmits<{
@@ -23,14 +25,12 @@ const emit = defineEmits<{
 const { t, locale } = useAdminLocale();
 
 const filterKeyword = ref('');
-const options = computed(() => searchBuiltinCountries(filterKeyword.value));
+const options = computed(() => searchBuiltinCountries(filterKeyword.value, locale.value));
 
 const selected = computed(() => getBuiltinCountry(props.modelValue));
 
 function optionLabel(c: BuiltinCountry) {
-  return locale.value === 'en-US'
-    ? `${c.nameEn} (${c.code})`
-    : `${c.nameZh} (${c.code})`;
+  return countryOptionLabel(c, locale.value);
 }
 
 function onFilter(q: string) {
@@ -67,13 +67,13 @@ function onChange(code: string | undefined) {
       >
         <div class="country-option">
           <img :src="countryFlagUrl(c)" alt="" class="country-option-flag" loading="lazy" />
-          <span class="country-option-name">{{ c.nameZh }} · {{ c.nameEn }}</span>
+          <span class="country-option-name">{{ countryDisplayName(c, locale) }}</span>
           <span class="country-option-code">{{ c.code }}</span>
         </div>
       </el-option>
     </el-select>
     <img
-      v-if="selected"
+      v-if="selected && !hidePreview"
       :src="countryFlagUrl(selected)"
       alt=""
       class="country-preview"