feat: implement interactive circuit surgery engine, dashboard integration, and Neuronpedia export functionality

feat: implement safety auditing tools for steering and deceptive alignment detection

refactor: implement centralized configuration, upgrade SAE training to multi-layer TopK, and optimize dashboard attribution UX

feat: implement NLA explainer and universality probe and refactor path patching engine

feat: implement path-causal microscopy

feat: implement SAE manager for latent decomposition and steering library for contrastive activation addition

First commit