세션 평가와 교수자 분석 보강

apps/api/app/config.py

@@ -104,6 +104,10 @@ class Settings(BaseSettings):
         default=256,
         validation_alias="EVALUATOR_SEMANTIC_CACHE_MAX_ENTRIES",
     )
+    session_evaluation_timeout: float = Field(
+        default=0.0,
+        validation_alias="SESSION_EVALUATION_TIMEOUT",
+    )
     session_digest_worker_enabled: bool = Field(
         default=False,
         validation_alias="SESSION_DIGEST_WORKER_ENABLED",