fix(场景自动化): 单步骤调试环境检查问题

frontend/src/business/components/api/automation/scenario/component/ApiComponent.vue

@@ -309,13 +309,15 @@
       run() {
         if (this.isApiImport) {
           if (this.request.type && (this.request.type === "HTTPSamplerProxy" || this.request.type === "JDBCSampler" || this.request.type === "TCPSampler")) {
-            this.$warning("请在环境配置中为该步骤所属项目选择运行环境！");
-            return false;
-          } else if (this.envMap && this.envMap.size > 0) {
-            const env = this.envMap.get(this.request.projectId);
-            if (!env) {
+            if (!this.envMap || this.envMap.size === 0) {
               this.$warning("请在环境配置中为该步骤所属项目选择运行环境！");
               return false;
+            } else if (this.envMap && this.envMap.size > 0) {
+              const env = this.envMap.get(this.request.projectId);
+              if (!env) {
+                this.$warning("请在环境配置中为该步骤所属项目选择运行环境！");
+                return false;
+              }
             }
           }
         }