refactor: 重构 Agent 模块为 AgentScope，删除旧版 CrewAI/LiteLLM 实现

backend/tests/integration/core/agentscope/test_runtime_calendar_smoke.py

@@ -7,8 +7,11 @@ from uuid import UUID, uuid4
 
 import pytest
 
-from core.agent.domain.system_agent_config import SystemAgentLLMConfig
-from core.agent.domain.user_context import UserAgentContext, parse_profile_settings
+from core.agentscope.schemas.system_agent_config import SystemAgentLLMConfig
+from core.agentscope.schemas.user_context import (
+    UserAgentContext,
+    parse_profile_settings,
+)
 from core.agentscope.runtime.config_loader import RuntimeStageConfig
 from core.agentscope.runtime.orchestrator import AgentScopeRuntimeOrchestrator
 from core.db.session import AsyncSessionLocal