feat: 添加 points_audit_ledger 及 JSON 字段 Pydantic Schema 约束

backend/src/v1/agent/utils.py

@@ -65,19 +65,14 @@ def convert_message_to_history(
 
 
 def _convert_user_attachments(
-    metadata: AgentChatMessageMetadata | dict[str, Any] | None,
+    metadata: AgentChatMessageMetadata | None,
     get_signed_url_fn: Callable[[dict[str, str]], str] | None,
 ) -> list[dict[str, str]]:
     """转换用户附件为临时访问 URL 列表"""
     if not metadata or not get_signed_url_fn:
         return []
 
-    if isinstance(metadata, AgentChatMessageMetadata):
-        resolved = extract_user_message_attachments(metadata)
-    elif isinstance(metadata, dict):
-        resolved = extract_user_message_attachments(metadata)
-    else:
-        return []
+    resolved = extract_user_message_attachments(metadata)
 
     signed_attachments: list[dict[str, str]] = []
     for attachment in resolved:
@@ -94,20 +89,13 @@ def _convert_user_attachments(
 
 
 def _extract_worker_agent_output(
-    metadata: AgentChatMessageMetadata | dict[str, Any] | None,
+    metadata: AgentChatMessageMetadata | None,
 ) -> dict[str, Any] | None:
     """提取 assistant 消息的结构化 agent_output。"""
     if not metadata:
         return None
 
-    if isinstance(metadata, AgentChatMessageMetadata):
-        agent_output = metadata.agent_output
-    else:
-        agent_output_data = metadata.get("agent_output")
-        if not agent_output_data:
-            return None
-        agent_output = _RUNTIME_AGENT_OUTPUT_ADAPTER.validate_python(agent_output_data)
-
+    agent_output = metadata.agent_output
     if not agent_output:
         return None