docs: update architecture and design docs with proxy reconnect and deployment strategies

server/src/state.rs

@@ -1,7 +1,7 @@
 use crate::models::*;
 use crate::search::MemoryIndex;
 use crate::store::Store;
-use std::collections::{HashMap, HashSet};
+use std::collections::HashMap;
 use std::fs;
 use std::path::PathBuf;
 use std::sync::RwLock;