DeepSeek TUI

Added - Hugging Face Inference Providers. Added huggingface as a native provider route (/provider huggingface). Supports HUGGINGFACE_API_KEY or HF_TOKEN for auth, HUGGINGFACE_BASE_URL and HUGGINGFACE_MODEL for overrides, and deepseek-ai/DeepSeek-V4-Pro / deepseek-ai/DeepSeek-V4-Flash as default models. Org-prefixed model IDs pass through. Fixed - Agent-mode shell error copy. The missing-tool error for shell tools now directs users to allow_shell = true instead of nudging toward YOLO mode. /config surfaces allow_shell in the Permissions section. - Provider description. /provider command description is now neutral instead of recommending specific providers. Community Thanks to @xyuai for provider persistence, /logout scope clarification, provider picker key replacement, and MiMo auth cleanup work (#2714, #2715, #2717, #2718), and @RefuseOdd for configurable path_suffix support on OpenAI-compatible endpoints (#2558).