Fix engine for applying pattern-based and LLM-assisted code migration fixes.
This crate provides the core fix planning and application logic:
language: trait for language-specific fix operationscontext: trait for framework-specific LLM prompt customizationregistry: registry of FixContext implementationsengine: pattern-based fix planning/applying (rename, removal, path change, etc.)llm_client: OpenAI-compatible LLM client for AI-assisted fixesgoose_client: goose CLI subprocess client for AI-assisted fixes