- Replace free functions with IncludeProcessor class
- Simplify IncludeResolver interface: { readFile, parseJson }
- Break down loadFile into focused private methods
- Use reduce() for array include merging
- Cleaner separation of concerns
- Move $include resolution to src/config/includes.ts
- Simplify io.ts by importing from includes module
- Cleaner API: resolveConfigIncludes(obj, configPath, resolver?)
- Re-export errors from io.ts for backwards compatibility
- Rename test file to match module name