community: the drawer asks a peer for its card and the server for interests, and discover gets the similar-users shelf

crates/soulseek-proto/src/wire.rs

@@ -160,6 +160,16 @@ impl Reader {
         })
     }
 
+    /// A length-prefixed raw byte string (a user picture, for one): the same
+    /// framing as `string`, without the UTF-8 interpretation.
+    pub fn bytes(&mut self) -> Result<Bytes> {
+        let len = self.u32()? as usize;
+        if self.buf.remaining() < len {
+            return Err(ProtoError::UnexpectedEof);
+        }
+        Ok(self.buf.copy_to_bytes(len))
+    }
+
     /// Replace the remaining payload with its zlib-decompressed form.
     pub fn decompress(&mut self) -> Result<()> {
         let mut out = Vec::new();