Provide a multiarch Docker image on Docker Hub

### Describe the feature

It would be a huge improvement for the community if a **multi-architecture Docker image** was published on Docker Hub, supporting both `linux/amd64` and `linux/arm64`. This would make it much easier to run the project across different platforms, especially on ARM-based devices like Raspberry Pi, Apple Silicon Macs, or cloud environments that use Graviton instances.

At the moment, anyone wanting to run this on ARM needs to clone the repo, configure Docker Buildx manually, and handle the entire multiarch build process themselves. That’s quite a hurdle for less technical users and for those of us who just want to deploy the app quickly and cleanly using `docker run` or `docker-compose`.

Having a prebuilt multiarch image would greatly increase accessibility and adoption, and reduce setup friction.

Thanks again for your awesome work and for considering this!

### It should be implemented because

_No response_

### Additional context

_No response_

### Would you like to work on this issue?

None