//! Undo system for homeboy write operations.
//!
//! Two independent subsystems:
//! - **Snapshot** (`UndoSnapshot`): Persistent disk-based undo for `homeboy undo`.
//! Saves file state before `--write` operations, restores on demand.
//! - **Rollback** (`InMemoryRollback`): Ephemeral in-memory rollback for per-chunk
//! verification during fixer operations.
// Re-export everything at module level to preserve existing import paths.
pub use InMemoryRollback;
pub use ;