Add analysis feature

backend/services/conversation_history.py

@@ -31,8 +31,9 @@ def _parse_timestamp(value: object) -> datetime:
 class ConversationRecorder:
     """按事件顺序写入一通会话；写库失败不应中断实时通话。"""
 
-    def __init__(self, session_id: str):
+    def __init__(self, session_id: str, analysis_plan: dict | None = None):
         self.session_id = session_id
+        self._analysis_plan = deepcopy(analysis_plan or {})
         self._sequence = 0
         self._trace_sequence = 0
         self._lock = asyncio.Lock()
@@ -49,6 +50,7 @@ class ConversationRecorder:
         runtime_mode: str,
         session_id: str | None = None,
         extra: dict | None = None,
+        analysis_plan: dict | None = None,
     ) -> "ConversationRecorder | None":
         session_id = session_id or f"conv_{uuid4().hex[:20]}"
         try:
@@ -62,11 +64,17 @@ class ConversationRecorder:
                         runtime_mode=runtime_mode,
                         status="active",
                         message_count=0,
+                        analysis_status="none",
+                        analysis_data=(
+                            {"plan": deepcopy(analysis_plan)}
+                            if analysis_plan and analysis_plan.get("enabled")
+                            else {}
+                        ),
                         extra=deepcopy(extra or {}),
                     )
                 )
                 await db.commit()
-            return cls(session_id)
+            return cls(session_id, analysis_plan)
         except Exception as exc:
             logger.error(f"创建对话历史会话失败，不影响本次通话: {exc}")
             return None
@@ -289,6 +297,16 @@ class ConversationRecorder:
                         conversation.status = status
                         conversation.ended_at = datetime.now(UTC)
                         conversation.message_count = self._sequence
+                        if (
+                            status == "completed"
+                            and self._sequence > 0
+                            and self._analysis_plan.get("enabled")
+                        ):
+                            conversation.analysis_status = "pending"
+                            conversation.analysis_error = ""
+                            conversation.analysis_data = {
+                                "plan": deepcopy(self._analysis_plan)
+                            }
                         await db.commit()
             except Exception as exc:
                 logger.error(f"结束对话历史会话失败: {exc}")