feat(i18n): 管理端与玩家端三语支持（中/英/马来语）

- 管理后台 adminT 文案库、结算与代理端页面、表单校验
- 玩家端 vue-i18n 补全首页/公告/串关与 ms 文案
- Element Plus ms 语言包与共享 locale 工具

apps/admin/src/components/AdminLocaleSwitcher.vue

@@ -0,0 +1,47 @@
+<script setup lang="ts">
+import { computed } from 'vue';
+import { useAdminLocale, type AdminLocale } from '../composables/useAdminLocale';
+
+const { locale, locales, setLocale, t } = useAdminLocale();
+
+const current = computed(() => locales.find((l) => l.code === locale.value) ?? locales[0]);
+
+function onChange(e: Event) {
+  setLocale((e.target as HTMLSelectElement).value as AdminLocale);
+}
+</script>
+
+<template>
+  <label class="admin-locale" :title="t('lang')">
+    <span class="admin-locale-flag" aria-hidden="true">{{ current.flag }}</span>
+    <select :value="locale" class="admin-locale-select" :aria-label="t('lang')" @change="onChange">
+      <option v-for="l in locales" :key="l.code" :value="l.code">
+        {{ l.flag }} {{ l.label }}
+      </option>
+    </select>
+  </label>
+</template>
+
+<style scoped>
+.admin-locale {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+.admin-locale-flag {
+  font-size: 18px;
+  line-height: 1;
+  flex-shrink: 0;
+}
+.admin-locale-select {
+  background: #0d0d0d;
+  color: var(--green-text);
+  border: 1px solid var(--green-border);
+  border-radius: 6px;
+  padding: 4px 8px 4px 4px;
+  font-size: 12px;
+  font-weight: 600;
+  min-width: 108px;
+  cursor: pointer;
+}
+</style>

apps/admin/src/components/RobotVerify.vue

@@ -1,5 +1,8 @@
 <script setup lang="ts">
 import { ref, onMounted } from 'vue';
+import { useAdminLocale } from '../composables/useAdminLocale';
+
+const { t } = useAdminLocale();
 
 const input = ref('');
 const code = ref('');
@@ -69,9 +72,9 @@ defineExpose({ validate, refresh });
     <input v-model="honeypot" type="text" name="website" tabindex="-1"
       autocomplete="off" class="hp-field" aria-hidden="true" />
     <input v-model="input" type="text" inputmode="numeric" maxlength="4"
-      class="captcha-input" placeholder="Captcha" autocomplete="off" />
+      class="captcha-input" :placeholder="t('login.captcha_ph')" autocomplete="off" />
     <canvas ref="canvasRef" class="captcha-canvas"
-      title="点击刷新" role="button" tabindex="0"
+      :title="t('login.captcha_refresh')" role="button" tabindex="0"
       @click="refresh" @keydown.enter="refresh" />
   </div>
 </template>
@@ -79,10 +82,10 @@ defineExpose({ validate, refresh });
 <style scoped>
 .captcha-row {
   display: flex;
+  gap: 0;
   align-items: stretch;
   height: 44px;
 }
-
 .hp-field {
   position: absolute;
   left: -9999px;
@@ -91,25 +94,21 @@ defineExpose({ validate, refresh });
   opacity: 0;
   pointer-events: none;
 }
-
 .captcha-input {
   flex: 1;
   min-width: 0;
   padding: 0 14px;
-  border: 1px solid #333;
-  border-right: none;
+  border: none;
   border-radius: 8px 0 0 8px;
-  background: #0d0d0d;
-  color: #fff;
+  background: #ffffff;
+  color: #111;
   font-size: 15px;
   font-weight: 500;
   outline: none;
-  transition: border-color 0.2s;
 }
-
-.captcha-input::placeholder { color: #555; }
-.captcha-input:focus { border-color: rgba(0, 196, 65, 0.6); }
-
+.captcha-input::placeholder {
+  color: #9ca3af;
+}
 .captcha-canvas {
   flex-shrink: 0;
   width: 108px;