feat: add lottery results display page

- Add LOTTERY_RESULTS system phase
- Add /screen/lottery-results route
- Add LotteryResultsView component
- Add database connection management (db.ts)
- Update DrawResult schema to remove User relation
- Add awardIcon field to VoteResultsView

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/client-screen/src/router/index.ts

@@ -51,6 +51,12 @@ const router = createRouter({
       component: () => import('../views/VoteResultsView.vue'),
       meta: { title: '年会大屏 - 投票结果' },
     },
+    {
+      path: '/screen/lottery-results',
+      name: 'screen-lottery-results',
+      component: () => import('../views/LotteryResultsView.vue'),
+      meta: { title: '年会大屏 - 抽奖结果' },
+    },
     {
       path: '/screen/horse-race',
       name: 'screen-horse-race',