tt_symbiote

A pip-installable library whose public API mirrors Hugging Face transformers' `Auto*` loaders, with model recipes that replace supported modules with TTNN implementations and fall back to CPU `nn.Module`s for the rest; the only added line is `set_device(model, mesh)`. Verified recipes include Ling-mini-2.0 on T3K, ResNet-50, Gemma 4 E2B/E4B and Qwen3-VL-2B on N150, with `compatibility.report(model)` showing which modules actually ran on device. `ttnn` must be built from source at the pinned tt-metal commit. It is the standalone packaging of the framework that started in tt-metal's `models/experimental/tt_symbiote`.