fix: support max reasoning and custom model selection for 1.0.0

artemis/config/llm.py

@@ -67,7 +67,7 @@ class LLM(BaseModel):
     max_tokens: int | None = Field(default=None, gt=0)
     temperature: float | None = None
     reasoning_effort: (
-        Literal["default", "none", "minimal", "low", "medium", "high", "xhigh"] | None
+        Literal["default", "none", "minimal", "low", "medium", "high", "xhigh", "max"] | None
     ) = Field(default_factory=lambda: settings.OPENAI_REASONING_EFFORT)
     enable_grounding: bool | None = None