chore: finalize backend feature scope

app/agents/orchestrator.py

@@ -1,6 +1,6 @@
 from collections.abc import AsyncIterator
 
-from app.agents.llm_adapter import LLMResponse, LLMStreamChunk
+from app.agents.llm_adapter import LLMStreamChunk
 from app.agents.hint_agent import HintAgent
 from app.agents.patient_agent import PatientAgent
 from app.agents.report_agent import ReportAgent
@@ -18,10 +18,6 @@ class MedicalConsultationOrchestrator:
         self.scoring_agent = ScoringAgent()
         self.report_agent = ReportAgent()
 
-    async def patient_reply(self, session: TrainingSession, case: CaseBase, memory_messages: list[dict], message: str) -> LLMResponse:
-        """问诊编排：调用 Patient Agent 生成 AI 病人回复。"""
-        return await self.patient_agent.reply(case, memory_messages, message, session.mode, self._patient_config(session))
-
     async def patient_stream_reply(
         self,
         session: TrainingSession,
@@ -84,7 +80,7 @@ class MedicalConsultationOrchestrator:
         orders: list[SessionOrder],
         last_user_message: str | None = None,
     ) -> dict:
-        """新手提示编排：基于当前会话上下文生成轻量训练提醒。"""
+        """练习提示编排：基于当前会话上下文生成轻量训练提醒。"""
         return await self.hint_agent.generate(session, case, memory_messages, orders, last_user_message)
 
     def _patient_config(self, session: TrainingSession) -> dict | None: