chore: establish development baseline

crates/bat-patch/src/lib.rs

@@ -0,0 +1,21 @@
+//! # BAT Patch
+//!
+//! Patch 引擎核心实现
+//!
+//! 支持：
+//! - Binary Diff/Patch
+//! - JSON Patch
+//! - Rollback
+//! - Integrity Check
+
+#![warn(missing_docs)]
+#![warn(clippy::all)]
+
+pub mod error;
+pub mod binary;
+pub mod json;
+
+pub use error::{PatchError, Result};
+
+/// Patch 引擎版本号
+pub const VERSION: &str = env!("CARGO_PKG_VERSION");