Enable the full clippy all + pedantic + nursery groups as workspace warnings,
with a small documented allow-list for the pedantic/nursery lints this project
intentionally does not follow (rustdoc-style requirements, deliberate numeric
casts in the protocol/UI layers, and a few noisy nursery lints). Also enable
the rust unused_lifetimes and unsafe_op_in_unsafe_fn lints.
Fixed every resulting warning (527 -> 0) mechanically per clippy's suggestions:
inline format args, const fns, item ordering, let-else, redundant clones,
map_or, cast_lossless, Eq derives, associated-fn conversions for methods that
never used self, and removing unnecessary Result wrappers whose call sites could
never propagate an error. No runtime behavior changed; cargo fmt applied.
cargo clippy --workspace --all-targets: 0 warnings. All tests pass.
Splits the downloads area 60/40 with a new info pane that adapts to the
selected download's status: header (filename, user, size, status, save
path, bitrate, length) plus queued-specific fields (queue position, peer
slots, peer upload speed) or live progress/speed/ETA when transferring.
Plumbs queue position via a new ClientOperation::PlaceInQueueUpdate so
PlaceInQueueResponse messages from peers reach DownloadStore, and threads
search-time metadata (bitrate, length, peer slots/speed) onto Download
through a new download_with_metadata entry point.
Move the Vec<Download> and the download lifecycle methods (add, remove,
lookup, status update, pause, resume, remove-if-queued) into a new
download_store module. ClientContext keeps thin delegating shims so
peer/listen, peer/download_peer and the existing client tests carry on
unchanged. Client::pause_download / resume_download / remove_queued_download
now delegate one-liners. Client::process_failed_uploads keeps the
read-then-write lock dance but the inner filtering is the new
collect_failed_tokens helper.
Adds dedicated unit tests for the store's behavior (add/get/remove,
pause+resume, queued-only removal, failed-token collection) so the
state-machine logic is exercised independently of Client.