feat: add selectable demo flow tasks

server/plugins/adapters/underframe_deflection_run.py

@@ -49,6 +49,11 @@ def main() -> int:
     try:
         emit_progress(0.05, "加载挠度算法包 v1.2.1")
 
+        selected_task_nos = config.get("demoTaskNos")
+        if isinstance(selected_task_nos, list) and 5 not in selected_task_nos:
+            write_error_result(out_dir, "构架挠度插件仅支持任务 5")
+            return 1
+
         # ── 输入文件 ────────────────────────────────────────────────────────
         pointcloud_path = first_pointcloud(payload)
         if not pointcloud_path: