dj sets + lyrics: a mix that names its own tracks, and words pulled off the separated voice

src-tauri/Cargo.toml

@@ -29,6 +29,14 @@ image.workspace = true
 tokio.workspace = true
 
 base64 = "0.22"
+# Shazam signature packets (shazam.rs) carry a CRC-32 of their body.
+crc32fast = "1"
+# Inflate for the deno release zip (ytdlp.rs) — already in the lock via the
+# image stack, so this adds no download.
+flate2 = "1"
+# STFT/iSTFT for the vocal separator (vocal_sep.rs) — pure Rust, so the
+# no-child-processes charter holds; wraps rustfft with real transforms.
+realfft = "3"
 # XSPF playlist import (playlist_formats.rs). quick-xml never resolves DTDs
 # or external entities, which is exactly the safety posture the importer wants.
 quick-xml = "0.37"