[BUG] Update check fails when `docker.sock` isn't used

[sirlancelot]

Description

I have Dockhand operating over a socat http environment. When clicking "check for updates" in the About section I get no UI feedback. When I look at the inspector I see the following response from the API:

Here's the compose file I use (with volumes removed):

services:
    socat:
        image: alpine/socat:latest
        command: tcp-listen:2375,fork,reuseaddr unix-connect:/var/run/docker.sock
        networks:
            - management
        volumes:
            - /var/run/docker.sock:/var/run/docker.sock
        deploy:
            restart_policy: &restart_policy
                condition: on-failure
                delay: 5s
                max_attempts: 3
                window: 60s

    dockhand:
        depends_on: ["socat"]
        image: fnsys/dockhand:latest
        ports:
            - "3000:3000"
        networks:
            - default
            - management
        deploy:
            restart_policy: *restart_policy

networks:
    management:
        internal: true

Steps to reproduce

1. Go to Settings > About
2. Click "Check for updates"
3. Observe the UI spinner for a split second
4. No further feedback

Logs

See screenshots

Browser logs

See screenshots

Dockhand version

1.0.9

Hawser version (if used)

No response

Connection mode

Direct IP

Please confirm the following

• I have already searched for relevant existing issues and discussions before opening this report.
• I have updated the title field above with a concise description.