fix: resolve compilation errors and warnings

Co-authored-by: aider (openai/andrew/openrouter/sonoma-sky-alpha) <aider@aider.chat>

src/compression_engine/mod.rs

@@ -3,7 +3,7 @@ use std::io;
 use std::io::{Read, Write};
 use std::path::PathBuf;
 use strum::IntoEnumIterator;
-use strum_macros::{Display, EnumString, EnumIter};
+use strum::{Display, EnumString, EnumIter};
 
 use log::*;
 
@@ -221,4 +221,4 @@ pub fn get_compression_engine(ct: CompressionType) -> Result<Box<dyn Compression
     } else {
         Err(anyhow!("Compression engine for {} is not supported", ct.to_string()))
     }
-}
+}