//! CypherLite query engine: lexer, parser, semantic analyzer, planner, and executor.
//!
//! This crate implements the full Cypher query pipeline for the CypherLite
//! embedded graph database. It transforms Cypher query strings through a
//! multi-stage pipeline: lexical analysis (logos), recursive-descent parsing,
//! semantic validation, logical plan generation, and Volcano/Iterator-model
//! execution.
/// Public API entry points: database handle, query execution, and result types.
/// Volcano/Iterator-model query executor with operator tree evaluation.
/// Lexical analyzer (tokenizer) built on the logos crate.
/// Recursive-descent Cypher parser producing an AST.
/// Logical query planner and optimizer.
/// Semantic analysis: scope resolution, type checking, and validation.
pub use ;
pub use ;