axum 0.7 → 0.8 — path params :param → {param}

[flupkede]

Fase D5 of the dependency roadmap.

What

• axum 0.7.9 → 0.8.9 (+ axum-core 0.5)
• The one breaking surface hit: path-parameter syntax :param → {param}:
  • Route registrations in serve, index mock-router and federation test mock-servers
  • CHUNK_PATH constant (/chunk/:id → /chunk/{id}) including the federation client's URL templating that derives from the same constant (kept in lockstep so peer URLs stay correct)
• Extractors (Path, Json, State), auth middleware and axum::serve compile unchanged

Validation

fmt + clippy -D warnings clean; cargo test --lib --bins: 1386 passed / 0 failed — including the federation URL-encoding tests and the serve router suite that exercise the new syntax end-to-end.