The following nodes are not installed and cannot be found in the registry

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

The following nodes are not installed and cannot be found in the registry: MiniMaxH3 Dual Clock Sampler T8, MiniMaxH3 Audio Adjuster T8, MiniMaxH3 AV Decode T8

### Actual Behavior

The following nodes are not installed and cannot be found in the registry: MiniMaxH3 Dual Clock Sampler T8, MiniMaxH3 Audio Adjuster T8, MiniMaxH3 AV Decode T8

### Steps to Reproduce

The following nodes are not installed and cannot be found in the registry: MiniMaxH3 Dual Clock Sampler T8, MiniMaxH3 Audio Adjuster T8, MiniMaxH3 AV Decode T8

### Debug Logs

```powershell
The following nodes are not installed and cannot be found in the registry: MiniMaxH3 Dual Clock Sampler T8, MiniMaxH3 Audio Adjuster T8, MiniMaxH3 AV Decode T8
```

### Other

_No response_

Start with the custom-node testing checklist and reproduce the registry lookup for the three named nodes: MiniMaxH3 Dual Clock Sampler T8, MiniMaxH3 Audio Adjuster T8, and MiniMaxH3 AV Decode T8. Check the relevant registry and custom-node entry points to determine why they are not found; done means the cause is identified and the issue has a verified resolution or clear reproduction details.

Written by the indexing model from the issue text.