Function read_message 

pub fn read_message<R: Read, T>(reader: &mut R) -> Result<T>
where
    T: Archive,
    T::Archived: Deserialize<T, Strategy<Pool, Error>>,

Read a message from a reader using length-prefixed rkyv encoding.

Safety

Uses unchecked deserialization for performance. Only safe when reading from trusted sources (our own worker processes or state files).