Initialized Backend crate & deps

Created a backend binary and defined it's dependencies

Cargo.toml

@@ -1,6 +0,0 @@
-[package]
-name = "ticketsystem"
-version = "0.1.0"
-edition = "2024"
-
-[dependencies]

backend/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "backend"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+axum = "0.8.9"
+serde = { version = "1.0.228", features = ["derive"] }
+sqlx = { version = "0.8.6", features = ["postgres", "runtime-tokio", "tls-native-tls"] }
+tokio = { version = "1.52.1", features = ["tr-multi-thread", "macros"] }