build: 初始化 Rust 项目结构

添加基本的 Rust 项目文件，包括 Cargo.toml、Cargo.lock、.gitignore 和 main.rs

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "VeriSHA1"
+version = "0.1.0"

Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "VeriSHA1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}