Unable to label ports exposed by `appPort`

• VSCode Version: 1.105.0
• Local OS Version: Windows 11 25H2
• Remote OS Version: Ubuntu 24.04.3 LTS
• Remote Extension/Connection Type: Dev Containers
• Logs: N/A

Steps to Reproduce:

1. Clone https://github.com/home-assistant/core

2. Include portAttributes to the devcontainer.json:

   {
     "appPort": ["8123:8123"], // existing
     "portsAttributes": {
       "8123": {
         "label": "Home Assistant",
         "onAutoForward": "silent"
       }
     }
   }
   

3. Reopen in the devcontainer

4. Check ports tab:

No Home Assistant label. I was expecting to see something like:

Note that appPort cannot be refactored into forwardPorts because of:

1. https://github.com/devcontainers/spec/issues/643
2. https://github.com/home-assistant/core/pull/154099/files#r2417724273

Does this issue occur when you try this locally?: N/A
Does this issue occur when you try this locally and all extensions are disabled?: Yes

This is related to https://github.com/microsoft/vscode-remote-release/issues/11254.