feat: add Admin Control Panel, voting status check, and router security

Admin Control Panel:
- Add full AdminControl.vue with 3 sections (Voting, Lottery, Global)
- Add AdminLogin.vue with access code gate (20268888)
- Add admin.ts store with state persistence
- Add admin.types.ts with state machine types
- Add router guards for /admin/director-console

Voting System Fixes:
- Add voting status check before accepting votes (VOTING_CLOSED error)
- Fix client to display server error messages
- Fix button disabled logic to prevent ambiguity in paused state
- Auto-generate userId on connect to fix UNAUTHORIZED error

Big Screen Enhancements:
- Add LiveVotingView.vue with particle system
- Add LotteryMachine.ts with 3-stage animation (Galaxy/Storm/Reveal)
- Add useSocketClient.ts composable
- Fix MainDisplay.vue SCSS syntax error
- Add admin state sync listener in display store

Server Updates:
- Add admin.service.ts for state management
- Add isVotingOpen() and getVotingStatus() methods
- Add admin socket event handlers

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

packages/client-mobile/src/assets/styles/global.scss

@@ -1,4 +1,4 @@
-@import './variables.scss';
+@use './variables.scss' as *;
 
 // Reset
 *,

packages/client-mobile/src/assets/styles/variables.scss

@@ -1,13 +1,20 @@
 // Guochao Red & Gold Theme Variables
+// Year of the Horse Edition - 马年国潮主题
 
-// Primary colors - 国潮红金配色
-$color-primary: #c41230; // 中国红
+// Primary colors - 丹砂红
+$color-primary: #C21F30; // Dan-sha Red
 $color-primary-light: #e8384f;
 $color-primary-dark: #9a0e26;
 
-$color-gold: #d4a84b; // 金色
-$color-gold-light: #f0c96a;
-$color-gold-dark: #b8923f;
+// Gold colors - 香槟金
+$color-gold: #F0C239; // Champagne Gold
+$color-gold-light: #f5d76e;
+$color-gold-dark: #d4a84b;
+
+// Glassmorphism surfaces
+$color-surface-glass: rgba(194, 31, 48, 0.85);
+$color-surface-glass-light: rgba(194, 31, 48, 0.6);
+$backdrop-blur: blur(12px);
 
 // Background colors
 $color-bg-primary: #fff5f5;