fix: remove unused imports and dead code

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

src/modes/server/api/mod.rs

@@ -2,7 +2,7 @@ pub mod item;
 pub mod status;
 
 use axum::{
-    routing::{get, post, delete},
+    routing::get,
     Router,
 };