fix: handle null ports in Docker container table (#5313)

When Docker API returns `null` for container ports (instead of `[]`),
the Docker management page crashes. Added optional chaining on
`ports?.length` to handle this case.

Fixes #5311

Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>

packages/api/src/router/docker/docker-router.ts

@@ -140,7 +140,7 @@ interface DockerContainer {
   id: string;
   state: ContainerState;
   image: string;
-  ports: Port[];
+  ports: Port[] | undefined;
   iconUrl: string | null;
   cpuUsage: number;
   memoryUsage: number;