- Add StdinGuard for safe single-read stdin across multiple flags - Add ResolveInputSource unified resolver for @file, @-, and pipe - Support @file / @- syntax for all string-typed override flags - Remove unused writeSchemaText function
- Add StdinGuard for safe single-read stdin across multiple flags - Add ResolveInputSource unified resolver for @file, @-, and pipe - Support @file / @- syntax for all string-typed override flags - Remove unused writeSchemaText function