OrtEmbedder's tokenize -> tensor build -> mean-pool -> L2-normalize
pipeline was near-byte-identical to breadmill's own OrtEmbedder (same
truncation, same actual_seq.min(mask.len()) padding guard, same 1e-10
epsilon) — now both share bread_onnx::embedding::EmbeddingSession (path
dependency for now, see the TODO in breadarrd/Cargo.toml). This crate
stays CPU-only (Provider::Cpu), matching its existing documented rationale.
ensure_model's reqwest-based download function is replaced with
bread_onnx::download::ensure_file (sync/ureq, matching breadmill's own
downloader and this workspace's bakery convention) dispatched via
spawn_blocking from this async context.
Builds and tests clean across the whole breadarr workspace: 205 passed, 1
pre-existing network-dependent test ignored, 0 failed.
Both import_one and import_season_pack_file deleted the existing
episode_file row and unlinked the on-disk file *before* link_or_copy_file
placed the new one. If the link/copy (or the free-space check) then
failed, the original content and its DB row were already gone with
nothing to fall back to.
Now the stale file is renamed to a sibling (freeing dest for the
hardlink fast path, same as before) and the DB row is left alone. Only
after the replacement is confirmed on disk are the file and the
old row cleaned up; any failure in between restores the original file
before returning the error.
