Initialize Rust project with Cargo configuration and main function

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "rustframe"
+version = "0.0.0"

Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "rustframe"
+version = "0.0.0"
+edition = "2024"
+
+[dependencies]

src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}