Add rate limiting, improve memory usage

Cargo.toml

@@ -7,12 +7,16 @@ edition = "2021"
 
 [dependencies]
 axum = "0.7.5"
+bincode = "1.3.3"
+bytes = "1.6.0"
 chrono = "0.4.38"
 dotenv = "0.15.0"
+memory-stats = "1.1.0"
 serde = { version = "1.0.201", features = ["derive"] }
 serde_json = "1.0.117"
 socketioxide = "0.13.1"
 tokio = { version = "1.37.0", features = ["full"] }
 tower-http = { version = "0.5.2", features = ["cors", "fs"] }
+tower_governor = "0.4.2"
 tracing = "0.1.40"
 tracing-subscriber = "0.3.18"