fix(toolset): 工具传递改为展开的 tools 列表，不再用 FunctionToolset 包装

前端/DB 仍用 toolset 做逻辑分组管理，但传给 pydantic-ai Agent 时
把 toolset 内的 callable 展开为 tools=[] 扁平列表，MCP server 等
需要 toolset 语义的单独走 toolsets=[] 参数。解决工具"存在但调不了"的问题。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

kilostar/api/agent.py

@@ -23,7 +23,7 @@ from fastapi import HTTPException
 from typing import Optional, List, Dict
 from kilostar.utils.check_user.role_check import RoleChecker
 from kilostar.core.postgres_database.model import UserAuthority
-from kilostar.utils.mcp_helper import get_all_toolsets_for_scope
+from kilostar.utils.mcp_helper import get_all_tools_and_toolsets_for_scope
 from kilostar.utils.i18n import t
 
 agent_router = APIRouter(prefix="/api/v1/agent", tags=["agent"])
@@ -84,7 +84,7 @@ async def load_agent(
             )
 
             scope = agent_register.individual_name
-            toolsets = await get_all_toolsets_for_scope(
+            tools, toolsets = await get_all_tools_and_toolsets_for_scope(
                 scope, toolset_ids=agent_register.toolsets
             )
 
@@ -102,6 +102,7 @@ async def load_agent(
                         global_state_machine,
                         agent_register.provider_title,
                         agent_register.model_id,
+                        tools,
                         toolsets,
                         accept_lang,
                         persona_prompt,
@@ -112,6 +113,7 @@ async def load_agent(
                         global_state_machine,
                         agent_register.provider_title,
                         agent_register.model_id,
+                        tools,
                         toolsets,
                         accept_lang,
                         persona_prompt,