- Add IsCollectionTypeByInterface() to detect types implementing IList<T>, ICollection<T>, IEnumerable<T>
- Add GetCollectionElementTypeByInterface() to extract element type from collection interfaces
- Add IsCollectionInternalProperty() to filter out Count, Capacity, IsReadOnly, etc.
- Update GenerateComplexTypeMessage to generate `repeated T items` for collection types
- Filter out indexers (!p.IsIndexer) and collection-internal properties from all property extraction
This fixes the invalid proto syntax where C# indexers (this[]) were being generated
as proto fields, causing proto compilation errors.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The MapToProtoModel function was silently failing when mapping Guid
properties to proto string fields, causing IDs to be empty in gRPC
responses. Added explicit Guid → string conversion handling.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
