- Move commands/storage.rs to commands/storage/mod.rs. - Extract three cohesive, self-contained clusters: - storage/thumbnails.rs: thumbnail cache + image-URL commands. - storage/people.rs: person/cast metadata cache commands. - storage/series_prefs.rs: per-series preferred audio track commands. - Re-exported via pub use so command names stay at commands::storage::*; invoke_handler unchanged. mod.rs shrinks from 1979 to 1500 lines, all tests pass.