add training configuration APIs

app/schemas/session.py

@@ -1,5 +1,7 @@
 from pydantic import BaseModel, Field, field_validator
 
+from app.schemas.training_config import PatientConfig
+
 
 class CreateSessionRequest(BaseModel):
     """创建会话入参：选择病例、训练类别、模式和分数类型。"""
@@ -8,6 +10,7 @@ class CreateSessionRequest(BaseModel):
     training_type: str = Field(pattern="^(case_analysis|diagnosis_treatment|consultation)$")
     mode: str = Field(pattern="^(novice|practice|teaching)$")
     score_type: str = Field(default="percentage", pattern="^(percentage|five_point)$")
+    patient_config: PatientConfig | None = None
 
     @field_validator("mode")
     @classmethod
@@ -23,6 +26,7 @@ class CreateSessionResponse(BaseModel):
     session_code: str
     status: str
     patient_opening: str
+    patient_config: dict | None = None
 
 
 class ChatRequest(BaseModel):