chore: sync various improvements and fixes

- Update gitignore and serena config
- Improve connection and voting stores
- Enhance admin routes and socket handling
- Update client-screen views
- Add auth middleware

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

packages/server/load-test/vote-real-scenario.yaml

@@ -81,7 +81,6 @@ scenarios:
             userId: "{{ userId }}"
             userName: "快投-{{ userId }}"
             role: "user"
-            department: "快速组"
       # 快速投7票（每票间隔 0.2-0.4 秒）
       - loop:
           - function: "selectSequentialTicket"
@@ -108,7 +107,6 @@ scenarios:
             userId: "{{ userId }}"
             userName: "正常-{{ userId }}"
             role: "user"
-            department: "正常组"
       # 正常速度投7票（每票间隔 1-2 秒，看节目、思考）
       - loop:
           - function: "selectSequentialTicket"
@@ -136,7 +134,6 @@ scenarios:
             userId: "{{ userId }}"
             userName: "慢投-{{ userId }}"
             role: "user"
-            department: "慢速组"
       # 先观望 5-10 秒
       - function: "randomLongDelay"
       - think: "{{ longDelay }}"