fix：正常获取Bot自身发送的消息id

pytests/test_maisaka_builtin_context.py

@@ -0,0 +1,47 @@
+from datetime import datetime
+from types import SimpleNamespace
+
+from src.chat.message_receive.message import SessionMessage
+from src.common.data_models.mai_message_data_model import MessageInfo, UserInfo
+from src.common.data_models.message_component_data_model import MessageSequence, ReplyComponent, TextComponent
+from src.maisaka.builtin_tool.context import BuiltinToolRuntimeContext
+
+
+def _build_sent_message() -> SessionMessage:
+    message = SessionMessage(
+        message_id="real-message-id",
+        timestamp=datetime(2026, 4, 5, 12, 0, 0),
+        platform="qq",
+    )
+    message.message_info = MessageInfo(
+        user_info=UserInfo(
+            user_id="bot-qq",
+            user_nickname="MaiSaka",
+            user_cardname=None,
+        ),
+        group_info=None,
+        additional_config={},
+    )
+    message.raw_message = MessageSequence(
+        [
+            ReplyComponent(target_message_id="m123"),
+            TextComponent(text="你好"),
+        ]
+    )
+    message.session_id = "test-session"
+    message.initialized = True
+    return message
+
+
+def test_append_sent_message_to_chat_history_keeps_message_id() -> None:
+    runtime = SimpleNamespace(_chat_history=[])
+    engine = SimpleNamespace(_get_runtime_manager=lambda: None)
+    tool_ctx = BuiltinToolRuntimeContext(engine=engine, runtime=runtime)
+
+    tool_ctx.append_sent_message_to_chat_history(_build_sent_message())
+
+    assert len(runtime._chat_history) == 1
+    history_message = runtime._chat_history[0]
+    assert history_message.message_id == "real-message-id"
+    assert "[msg_id]real-message-id\n" in history_message.raw_message.components[0].text
+    assert "[msg_id:real-message-id]" in history_message.visible_text