修复: B10路由使用正确的GatewayControlRequest DTO

gateway/src/IntegrationGateway.Host/Program.cs

@@ -206,7 +206,7 @@ app.MapGet("/api/gateway/recordings/{adapter}/{deviceId}", async (string adapter
 });
 
 // B10: 设备控制 — 下发控制指令（远程开门/抬杆/授权）
-app.MapPost("/api/gateway/control/{adapter}", async (string adapter, ControlRequest req) =>
+app.MapPost("/api/gateway/control/{adapter}", async (string adapter, GatewayControlRequest req) =>
 {
     var a = registry.FindByCode<IAcceptsControl>(adapter);
     if (a == null) return Results.NotFound(new { error = "CAPABILITY_NOT_SUPPORTED" });