Move llama.cpp chat and local embeddings onto a verified externally managed llama-server runtime. Remove the in-process native runtime, forked embedding workers, and node-llama-cpp dependency while preserving guided setup, local GGUF models, tool-capable agent runs, diagnostics, and operator docs.
* feat(llama-cpp): add in-process text inference
* test(llama-cpp): narrow setup provider fixture
* fix(llama-cpp): trim public surface and refresh docs map
* fix(llama-cpp): import Context type in inference test