chore(model): add kimi k2 thinking and gpt-oss safeguard (#201)

Author: gufengc

src/backend/server/static_config.py

@@ -9,8 +9,11 @@
     "Qwen/Qwen3-0.6B": "Qwen/Qwen3-0.6B",
     "openai/gpt-oss-20b": "mlx-community/gpt-oss-20b-MXFP4-Q8",
     "openai/gpt-oss-120b": "mlx-community/gpt-oss-120b-4bit",
+    "openai/gpt-oss-safeguard-20b": "lmstudio-community/gpt-oss-safeguard-20b-MLX-MXFP4",
+    "openai/gpt-oss-safeguard-120b": "lmstudio-community/gpt-oss-safeguard-120b-MLX-MXFP4",
     "moonshotai/Kimi-K2-Instruct": "mlx-community/Kimi-K2-Instruct-4bit",
     "moonshotai/Kimi-K2-Instruct-0905": "mlx-community/Kimi-K2-Instruct-0905-mlx-DQ3_K_M",
+    "moonshotai/Kimi-K2-Thinking": "mlx-community/Kimi-K2-Thinking",
     "Qwen/Qwen3-Next-80B-A3B-Instruct": "mlx-community/Qwen3-Next-80B-A3B-Instruct-8bit",
     "Qwen/Qwen3-Next-80B-A3B-Instruct-FP8": "mlx-community/Qwen3-Next-80B-A3B-Instruct-8bit",
     "Qwen/Qwen3-Next-80B-A3B-Thinking": "mlx-community/Qwen3-Next-80B-A3B-Thinking-8bit",