feat(player): 完善 H5 投注端与 API 演示数据

- 球赛/串关/优胜冠军、赛事详情、历史投注与个人资料编辑
- 固定顶栏、公告与底栏，仅内容区滚动
- 底部导航与站点 favicon 使用 logo，登录页精简
- API 种子、冠军盘与历史注单增强

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

apps/player/src/stores/betSlip.ts

@@ -25,12 +25,26 @@ export const useBetSlipStore = defineStore('betSlip', () => {
     );
     if (existing >= 0) {
       items.value.splice(existing, 1);
+      if (items.value.length < 2) mode.value = 'single';
       return;
     }
     items.value.push(item);
     if (items.value.length >= 2) mode.value = 'parlay';
   }
 
+  /** 串关：同场只保留一个选项；再次点击已选项则取消 */
+  function addParlayLeg(item: SlipItem) {
+    const samePick = items.value.findIndex((i) => i.selectionId === item.selectionId);
+    if (samePick >= 0) {
+      items.value.splice(samePick, 1);
+      if (items.value.length < 2) mode.value = 'single';
+      return;
+    }
+    items.value = items.value.filter((i) => i.matchId !== item.matchId);
+    items.value.push(item);
+    mode.value = items.value.length >= 2 ? 'parlay' : 'single';
+  }
+
   function removeItem(selectionId: string) {
     items.value = items.value.filter((i) => i.selectionId !== selectionId);
     if (items.value.length < 2) mode.value = 'single';
@@ -58,6 +72,16 @@ export const useBetSlipStore = defineStore('betSlip', () => {
     return new Set(matchIds).size !== matchIds.length;
   });
 
+  const drawerOpen = ref(false);
+
+  function openDrawer() {
+    drawerOpen.value = true;
+  }
+
+  function closeDrawer() {
+    drawerOpen.value = false;
+  }
+
   return {
     items,
     stake,
@@ -67,8 +91,12 @@ export const useBetSlipStore = defineStore('betSlip', () => {
     totalOdds,
     potentialReturn,
     hasSameMatch,
+    drawerOpen,
     addItem,
+    addParlayLeg,
     removeItem,
     clear,
+    openDrawer,
+    closeDrawer,
   };
 });