swh-fuse: rehaul to be super fast

Main steps

• Refactor swh-fuse/swhfs using
  • The SWH compressed graph
  • SWH compressed archive (offloading big files

Actors

Software Heritage

Specifications

Specifications and documentation related to swh-fuse in CodeCommons are centralized in this directory:

https://gitlab.softwareheritage.org/product-management/code-commons/-/tree/main/specifications/swh-fs?ref_type=heads

• July 2025 presentation slides: https://hedgedoc.softwareheritage.org/p/e_Tqm-XCz#/