[Request]: Storage - Add ability to resize native container storage

### Feature or enhancement request details

Add support for resizing the storage capacity of existing native containers (including builder). This would allow increasing container disk size without recreating the container, which is currently required when workloads exceed the default capacity.

Example usage:
`container resize mycontainer 2TB`

Some things to consider:
* Support both online (running) and offline (stopped) resize operations if feasible.
* Preserve existing data and filesystem integrity during expansion.
* Validate requested size against host disk capacity.

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct

Start by tracing how native containers, including the builder, currently allocate and manage storage. Define the resize command and its behavior for running and stopped containers, then verify data preservation, filesystem integrity, and host-capacity validation. No specific files, tests, or entry points are named in the issue.

Written by the indexing model from the issue text.