feat(player): 重构客服悬浮入口与设置抽屉，优化消息页交互

- 新增可拖拽悬浮客服按钮，支持贴边吸附与位置记忆
- 顶部栏改为设置抽屉入口，将语言/规则/登出等从个人页迁出
- 余额芯片集成用户头像，移除独立头像菜单
- 消息列表去掉冗余未读白点，统一消息页返回导航
- 补充 profile.settings 多语言文案

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

apps/player/src/components/CashBalanceChip.vue

@@ -2,17 +2,26 @@
 import { ref, onMounted, onUnmounted, computed } from 'vue';
 import { useRouter } from 'vue-router';
 import { useI18n } from 'vue-i18n';
+import { playerAvatarUrl, randomAvatarKey } from '@thebet365/shared';
+import { useAuthStore } from '../stores/auth';
 import { formatMoney } from '../utils/localeDisplay';
 import { usePlayerProfile } from '../composables/usePlayerProfile';
 
 const { locale, t } = useI18n();
-const { profileRaw, refreshProfile } = usePlayerProfile();
+const { profileRaw, refreshProfile, avatarUrl } = usePlayerProfile();
+const auth = useAuthStore();
 const router = useRouter();
 const open = ref(false);
 const root = ref<HTMLElement | null>(null);
 
 const wallet = computed(() => profileRaw.value?.wallet ?? null);
 
+const displayAvatarUrl = computed(() => {
+  if (avatarUrl.value) return avatarUrl.value;
+  const seed = auth.user?.username;
+  return seed ? playerAvatarUrl(randomAvatarKey(seed)) : null;
+});
+
 function amountValue(value: unknown): number {
   if (value == null) return 0;
   if (typeof value === 'number') return Number.isFinite(value) ? value : 0;
@@ -74,7 +83,11 @@ onUnmounted(() => {
         <span class="chip-label">{{ t('wallet.cash_balance') }}</span>
         <span class="chip-amount">{{ available }}</span>
       </span>
-      <span class="chevron" :class="{ open }">▾</span>
+      
+      <!-- Integrated Avatar image -->
+      <span class="chip-avatar-wrap">
+        <img v-if="displayAvatarUrl" :src="displayAvatarUrl" alt="" class="chip-avatar-img" />
+      </span>
     </button>
 
     <div v-if="open" class="cash-panel">
@@ -110,9 +123,9 @@ onUnmounted(() => {
 .cash-chip {
   display: flex;
   align-items: center;
-  gap: 4px;
+  gap: 10px;
   height: 36px;
-  padding: 0 10px;
+  padding: 0 6px 0 10px;
   min-width: 0;
   cursor: pointer;
   border: 1px solid var(--border);
@@ -149,15 +162,25 @@ onUnmounted(() => {
   font-variant-numeric: tabular-nums;
 }
 
-.chevron {
-  font-size: 10px;
-  color: var(--text-muted);
-  transition: transform 0.2s;
-  margin-left: 0;
+/* Integrated Avatar Styling */
+.chip-avatar-wrap {
+  width: 24px;
+  height: 24px;
+  border-radius: 50%;
+  overflow: hidden;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid var(--border-gold-soft);
+  flex-shrink: 0;
+  background: var(--bg-body);
 }
 
-.chevron.open {
-  transform: rotate(180deg);
+.chip-avatar-img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  object-position: top;
 }
 
 .cash-panel {