fix: switch to ubuntu-latest labels for compatibility with current runner

.gitea/workflows/deploy-demo.yaml

@@ -7,27 +7,22 @@ on:
 
 jobs:
   deploy-demo:
-    runs-on: host
+    runs-on: ubuntu-latest  # 使用機器人預設宣告的標籤
     steps:
       - name: Checkout Code
         uses: actions/checkout@v3
 
       - name: Step 1 - Build & Deploy Containers
         run: |
-          # 在 103 主機環境下執行
+          # 機器人現在是以「容器模式」預設執行的，我需要確保它能操作宿主機 Docker
           WWWGROUP=1000 WWWUSER=1000 docker compose -f compose.yaml -f compose.demo.yaml up -d --build --wait
 
       - name: Step 2 - Composer & NPM & Initialization
         run: |
            docker exec -u 1000:1000 -w /var/www/html star-cloud-demo-laravel sh -c "
-            # 1. 後端依賴 (使用加速鏡像)
             composer install --no-dev --optimize-autoloader --no-interaction &&
-            
-            # 2. 前端編譯
             npm install &&
             npm run build &&
-            
-            # 3. Laravel 初始化與優化
             php artisan migrate --force &&
             php artisan storage:link &&
             php artisan optimize:clear &&