fix(coins): wrap experiment.prepare() with shm and dim-expansion patches

feat(backend): rewire for hugging face spaces deployment

feat(kganomaly): add streaming denoising backend with KG-likelihood metric

feat(coins): add sample-query endpoint and resolve Freebase MIDs to names

fix(coins): rebuild machines array when cached .npz has wrong length

feat(coins): add optional seed param and label fields to sample-triples

feat(kg-anomaly): add correct/continue endpoints with SSE streaming

feat(graphgen): implement generate and continue endpoints with SSE streaming

Implement COINs predict endpoint

Implement backend discovery endpoints

Implement API skeleton