fix: add bytes dependency and fix stream type mismatches

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/modes/server/api/item.rs

@@ -6,6 +6,7 @@ use axum::{
 };
 use log::warn;
 use std::collections::HashMap;
+use bytes::Bytes;
 
 use crate::services::async_item_service::AsyncItemService;
 use crate::services::error::CoreError;
@@ -240,13 +241,14 @@ async fn stream_item_content(
         buffered_file.seek(std::io::SeekFrom::Start(offset)).await?;
     }
     
+    // Create a reader stream with optional length limit
     // Create a reader stream with optional length limit
     let stream = if length > 0 {
         // Limit the stream to the specified length
-        ReaderStream::new(buffered_file.take(length))
+        Box::pin(ReaderStream::new(buffered_file.take(length))) as std::pin::Pin<Box<dyn tokio_stream::Stream<Item = Result<Bytes, std::io::Error>> + Send>>
     } else {
         // Stream the entire file from the offset
-        ReaderStream::new(buffered_file)
+        Box::pin(ReaderStream::new(buffered_file)) as std::pin::Pin<Box<dyn tokio_stream::Stream<Item = Result<Bytes, std::io::Error>> + Send>>
     };
     
     Ok((stream, mime_type))