Support message type arrays

[erikist]

Add in support for message type arrays

[peternavr]

I believe this is working out of the box. I don't think we need to merge in the PR. This is the claude output that shows it working.

// What the server is currently vibing
message GetVibeResponse {
  string vibe = 1;
  repeated VibeScalar vibes = 2;
}

// The vibe array request
message SetVibeArrayRequest {
  // The details of the vibe array
  VibeArray vibe_array = 1;
  repeated VibeArray vibe_arrays = 2;
}