fix: opencode config

src/agentci/config.py

@@ -36,6 +36,8 @@ class Settings(BaseSettings):
     plan_variant: str | None = None
     implement_model: str = "openai/gpt-5.6-sol"
     implement_variant: str | None = None
+    explore_model: str = "openai/gpt-5.6-luna"
+    explore_variant: str = "low"
     research_model: str = "openai/gpt-5.6-luna"
     research_variant: str = "high"
     plan_review_rounds: int = Field(default=4, ge=1, le=20)
@@ -53,7 +55,7 @@ class Settings(BaseSettings):
     def strip_url(cls, value: str) -> str:
         return value.rstrip("/")
 
-    @field_validator("plan_model", "implement_model", "research_model")
+    @field_validator("plan_model", "implement_model", "explore_model", "research_model")
     @classmethod
     def validate_opencode_model(cls, value: str) -> str:
         provider, separator, model = value.partition("/")

src/agentci/container.py

@@ -59,6 +59,7 @@ async def build_container(settings: Settings) -> Container:
         required_models=(
             (settings.plan_model, settings.plan_variant),
             (settings.implement_model, settings.implement_variant),
+            (settings.explore_model, settings.explore_variant),
             (settings.research_model, settings.research_variant),
         ),
         timeout_seconds=settings.turn_timeout_seconds,