fix: 使用 container 指定 PHP 镜像

- test.yml / ci.yml: 使用 composer:latest 镜像 (含 PHP)
- deploy.yml: 使用 alpine:latest 镜像 + SSH 密钥配置
- 解决 runner 默认环境缺少 PHP 的问题

.gitea/workflows/test.yml

@@ -11,21 +11,23 @@ jobs:
   quick-test:
     name: 快速测试
     runs-on: linux
+    container:
+      image: composer:latest
     steps:
       - name: 检出代码
         run: |
+          apk add --no-cache git
           git clone -b ${{ github.ref_name }} ${{ github.server_url }}/${{ github.repository }}.git .
           git checkout ${{ github.sha }}
 
       - name: 检查环境
         run: |
           echo "PHP: $(php -v | head -1)"
-          echo "Composer: $(composer --version 2>/dev/null || echo 'not found')"
+          echo "Composer: $(composer --version)"
 
       - name: PHP 语法检查
         run: |
           echo "📝 PHP 语法检查..."
-          echo "PHP 版本: $(php -v | head -1)"
           errors=0
           for file in $(find . -name "*.php" -not -path "./vendor/*"); do
             output=$(php -l "$file" 2>&1)
@@ -43,10 +45,7 @@ jobs:
           fi
 
       - name: 安装依赖
-        run: |
-          if [ -f composer.json ]; then
-            composer install --prefer-dist --no-progress --no-interaction
-          fi
+        run: composer install --prefer-dist --no-progress --no-interaction
 
       - name: 运行测试
         run: |