Vector routing prototype complete.

The first real piece of the network works. We built a prototype that embeds a user query and seven domain centroids into a shared latent space using sentence transformers, then computes cosine similarity to route the query to the right specialist. It also detects Demand Vector Clouds — regions of the inference space with no good specialist yet. That detection is the foundation for the Soup of Experts architecture. The maths works. Now we need the network to run it on.