chore: remove unused imports and variables

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/modes/server.rs

@@ -21,7 +21,6 @@ mod pages;
 mod mcp;
 
 pub use common::{AppState, logging_middleware, create_auth_middleware};
-pub use mcp::KeepMcpServer;
 
 pub fn mode_server(
     _cmd: &mut Command,

src/modes/server/common.rs

@@ -108,12 +108,6 @@ pub struct ItemContentInfo {
 #[derive(Debug, Deserialize)]
 pub struct TagsQuery {
     pub tags: Option<String>,
-    #[serde(default = "default_allow_binary")]
-    pub allow_binary: bool,
-}
-
-fn default_allow_binary() -> bool {
-    true
 }
 
 #[derive(Debug, Deserialize)]
@@ -208,11 +202,6 @@ pub async fn logging_middleware(
 ) -> Response {
     let method = request.method().clone();
     let uri = request.uri().clone();
-    let request_content_length = request.headers()
-        .get("content-length")
-        .and_then(|v| v.to_str().ok())
-        .and_then(|s| s.parse::<u64>().ok())
-        .unwrap_or(0);
     
     let start = Instant::now();
     let response = next.run(request).await;

src/services/async_item_service.rs

@@ -4,11 +4,8 @@ use crate::services::types::{ItemWithContent, ItemWithMeta};
 use rusqlite::Connection;
 use std::collections::HashMap;
 use std::path::PathBuf;
-use std::str::FromStr;
 use std::sync::Arc;
 use tokio::sync::Mutex;
-use tokio::io::AsyncReadExt;
-use tokio_util::io::ReaderStream;
 
 /// An asynchronous wrapper around the `ItemService` for use in async contexts like the web server.
 /// It uses `tokio::task::spawn_blocking` to run synchronous database and filesystem operations