feat(ui): 统一登录与会话页的 shadcn 交互组件

登录页切换为官方 input-group 组合并将全站提示从 antd message 统一为 sonner toast，确保通知位置与风格一致。同时补齐相关 shadcn CLI 生成组件及构建配置更新。

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

.gitea/workflows/deploy.yml

@@ -1,9 +1,13 @@
 name: Deploy To Server
 
 on:
-  push:
-    branches: [main, master]
+  # 暂停自动/手动部署触发；需要恢复时改回 push / workflow_dispatch。
   workflow_dispatch:
+    inputs:
+      disabled:
+        description: "Deployment is temporarily disabled"
+        required: false
+        default: "true"
 
 concurrency:
   group: deploy-${{ github.ref }}
@@ -11,6 +15,7 @@ concurrency:
 
 jobs:
   deploy:
+    if: ${{ false }}
     runs-on: ubuntu-latest
     steps:
       - name: Deploy over SSH