fix(auth): fix MsgPack serialization by adding missing feature in backend and reverting to individual arguments

.gitignore

@@ -8,3 +8,9 @@ backend.log
 .runner
 .env
 backend/.env
+*.db
+*.db-shm
+*.db-wal
+*.sqlite
+*.sqlite-shm
+*.sqlite-wal

backend/Cargo.toml

@@ -44,6 +44,6 @@ tower_governor = "0.8.0"
 governor = "0.10.4"
 
 # Leptos
-leptos = { version = "0.8.15", features = ["nightly"] }
+leptos = { version = "0.8.15", features = ["nightly", "msgpack"] }
 leptos_axum = { version = "0.8.7" }
 jsonwebtoken = "9"