Feature Request: Relative Virtual Chunk URLs with Named Containers

Feature Request: Relative Virtual Chunk URLs with Named Containers: a task in LegoFlow-SWE (Harbor dataset). For example, if I define a container: python container = VirtualChunkContainer( name="mycontainer", url prefix="s3://mybucket/data/", store=... ) and add it to the repository configuration…

The task

For example, if I define a container: ```python container = VirtualChunkContainer( name="mycontainer", url_prefix="s3://mybucket/data/", store=... ) ``` and add it to the repository configuration via `set_virtual_chunk_container(container)`, then I should be able to create a virtual chunk reference with a location…

Part of Lego-X/LegoFlow-SWE.