优化环境变量检查逻辑，移除不必要的密钥

.gitea/workflows/package.yml

@@ -128,8 +128,6 @@ jobs:
           required_env_keys=(
             ENVIRONMENT
             NETWORK_NAME
-            SECRET_KEY
-            ENCRYPTION_KEY
             DB_NAME
             DB_HOST
             DB_PORT
@@ -150,7 +148,7 @@ jobs:
 
           missing_keys=()
           for key in "${required_env_keys[@]}"; do
-            if ! grep -Eq "^[[:space:]]*${key}=" .env; then
+            if ! grep -Eq "^[[:space:]]*(export[[:space:]]+)?${key}[[:space:]]*=" .env; then
               missing_keys+=("$key")
             fi
           done