Why:
- Remote and UI-echoed file descriptions could reach transaction and storage
code one entry at a time, so a hostile late path could mutate earlier files.
- Per-file consensus also accepted malformed peer lists and let duplicate rows
inflate a source's vote.
What:
- Add a complete protocol-7 manifest adapter with catalog-root confinement,
portable path and alias rules, reserved-path protection, shape and size caps,
symlink/reparse inspection, and zero-mutation tests.
- Keep download selection in the peer core, validate every peer manifest before
consensus, and pass only the validated manifest into storage/orchestration.
- Canonicalize locally advertised paths, cap exact chunk receives, and preserve
the local-only install fast path.
- Record the chosen safety limits and follow-up ownership/catalog decisions.
Test Plan:
- just clippy
- just test
- just frontend-test
- just build
- just fmt (Rust/TOML/Prettier completed; rumdl reports 39 pre-existing issues)
- git diff --cached --check