Offline-capable documentation search for JS/TS projects. Reads your package.json, fetches docs (preferring llms.txt), and indexes them with a 4-stage RAG pipeline: vector search + BM25 keywords + RRF fusion + cross-encoder reranking. Embeddings and reranking run via TEI (HuggingFace Text Embeddings Inference) Docker containers with auto GPU detection (NVIDIA CUDA, Apple Metal).