mingling.git - 用于开发多子命令的命令行框架

	Commit message (Collapse)	Author	Age	Files	Lines
*	feat: add entry metadata system with compile-time typed values	魏曹先生	16 hours	4	-0/+355
	Add `Metadata<B>` trait and `#[metadata(Entry)]` attribute macro to attach arbitrary, compile-time-typed metadata to entries. Implement `ProgramCollect::get_metadata<T>()` for runtime retrieval, backed by a global registry populated by `register_metadata!`. Extend `pathf` with `MetadataPattern` to resolve metadata types across modules at build time. Add two examples demonstrating metadata usage with and without pathf integration.