By: Lucien Huber <im@lcnbr.ch>
simplify Rust workspace build definitions Reuse upstream Crane buildDepsOnly with artifact inheritance, share dependency components with CI scheduling, consolidate workspace checks, and remove unused helpers and redundant artifact-builder settings. All 413 public derivation/output pairs remain identical across the three supported platforms. The cached graph/configuration check passes locally. User request: also does the nix/rust-workspace.nix need to be so huge? KISS