turbo

74b0491c - chore: Extract config and engine builder modules from `turborepo-lib` (#11346)

chore: Extract config and engine builder modules from `turborepo-lib` (#11346) ## Summary This PR continues the modularization of `turborepo-lib` by extracting configuration and engine builder code into separate crates: - **Creates `turborepo-config` crate** (~1,900 lines) containing configuration management - **Enhances `turborepo-engine` crate** (~1,400 lines added) with engine builder and related types ## Changes ### New `turborepo-config` crate - `ConfigurationOptions`, `TurborepoConfigBuilder`, `Error` - Environment variable handling (`env.rs`, `override_env.rs`) - File-based configuration loading (`file.rs`, `turbo_json.rs`) ### Enhanced `turborepo-engine` crate - `EngineBuilder<'a, L: TurboJsonLoader>` - now generic over loader type - `BuilderError` and helper error types (`MissingTaskError`, `CyclicExtends`, etc.) - `TaskDefinitionFromProcessed` trait for task definition conversion - `TurboJsonLoader` trait abstraction for dependency inversion - Validation utilities (`validate_task_name`) ## Test Plan CI should show no behavioral changes.