- Proto definitions for SearchRequest/SearchResponse/SearchResult
- SearchService implementing MusicFs trait
- Query validation (empty check, 256 char max, limit cap at 10k)
- Streaming support via tokio mpsc channel
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/claude-agent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Alexander