//! Purpose: Directory-backed facade for file migration helpers.
//!
//! Responsibilities:
//! - Declare focused file migration companion modules.
//! - Re-export the stable file migration API used by migration dispatch code.
//! - Keep regression coverage colocated with the facade.
//!
//! Scope:
//! - Thin facade only; rename logic, config reference updates, and JSON-to-JSONC
//! migration behavior live in companion modules.
//!
//! Usage:
//! - Imported through `crate::migration::file_migrations::*` by `migration::mod`.
//!
//! Invariants/Assumptions:
//! - Public signatures remain stable across this split.
//! - File migration semantics, backup defaults, and rollback behavior stay unchanged.
//! - Companion modules stay private to the migration boundary.
pub use ;
pub use ;