feat: 知识库工具注册分类体系，ToolsCardList 展示 knowledge 分类

- kbs tools 添加 category=knowledge 和 tags 元数据
- registry 注释补充 knowledge 分类说明
- ToolsCardList 新增 knowledge 分类展示标签

Co-authored-by: xerrors <xerrors@qq.com>

backend/package/yuxi/agents/toolkits/kbs/tools.py

@@ -3,8 +3,9 @@
 import inspect
 from typing import Any
 
-from langchain_core.tools import tool
 from langgraph.prebuilt.tool_node import ToolRuntime
+
+from yuxi.agents.toolkits.registry import tool
 from pydantic import BaseModel, Field
 
 from yuxi import knowledge_base
@@ -29,7 +30,7 @@ class ListKBsInput(BaseModel):
     dummy: str = Field(default="", description="Dummy parameter - ignore")  # Add this
 
 
-@tool(args_schema=ListKBsInput)
+@tool(category="knowledge", tags=["知识库"], args_schema=ListKBsInput)
 async def list_kbs(dummy: str, runtime: ToolRuntime) -> str:  # Now has 2 params
     """列出当前用户可访问的知识库列表
 
@@ -82,7 +83,7 @@ class GetMindmapInput(BaseModel):
     kb_name: str = Field(description="知识库名称，用于指定要获取思维导图的知识库")
 
 
-@tool(args_schema=GetMindmapInput)
+@tool(category="knowledge", tags=["知识库"], args_schema=GetMindmapInput)
 async def get_mindmap(kb_name: str, runtime: ToolRuntime) -> str:
     """获取指定知识库的思维导图结构
 
@@ -192,7 +193,7 @@ def _find_query_target(
     return target_info, normalized_resource_id, None
 
 
-@tool(args_schema=QueryKBInput)
+@tool(category="knowledge", tags=["知识库"], args_schema=QueryKBInput)
 async def query_kb(resource_id: str, query_text: str, file_name: str | None = None, runtime: ToolRuntime = None) -> Any:
     """在指定知识库中检索内容
 
@@ -238,7 +239,7 @@ async def query_kb(resource_id: str, query_text: str, file_name: str | None = No
         return f"检索失败: {str(e)}"
 
 
-@tool(args_schema=OpenKBDocumentInput)
+@tool(category="knowledge", tags=["知识库"], args_schema=OpenKBDocumentInput)
 async def open_kb_document(
     resource_id: str,
     file_id: str,
@@ -292,7 +293,7 @@ async def open_kb_document(
         return f"打开知识库文档失败: {str(e)}"
 
 
-@tool(args_schema=FindKBDocumentInput)
+@tool(category="knowledge", tags=["知识库"], args_schema=FindKBDocumentInput)
 async def find_kb_document(
     resource_id: str,
     file_id: str,

backend/package/yuxi/agents/toolkits/registry.py

@@ -6,7 +6,7 @@ from dataclasses import dataclass, field
 class ToolExtraMetadata:
     """附加元数据（用装饰器注册）"""
 
-    category: str = ""  # 分类: buildin, mysql, subagents, debug
+    category: str = ""  # 分类: buildin, knowledge, mysql, subagents, debug
     tags: list[str] = field(default_factory=list)
     display_name: str = ""  # 显示名称（给人看的名字）
     icon: str = ""

web/src/components/extensions/ToolsCardList.vue

@@ -15,7 +15,7 @@
         </a-select>
       </template>
       <template #actions>
-        <a-tooltip title="刷新工具">
+        <a-tooltip title="刷新工具" placement="bottom">
           <a-button class="lucide-icon-btn" :disabled="loading" @click="fetchTools">
             <RefreshCw :size="14" />
           </a-button>
@@ -129,9 +129,9 @@ const tools = ref([])
 const currentTool = ref(null)
 const detailVisible = ref(false)
 
-const categories = ['buildin', 'mysql', 'debug']
+const categories = ['buildin', 'knowledge', 'mysql', 'debug']
-const categoryLabels = { buildin: '内置工具', mysql: 'MySQL', debug: '调试' }
+const categoryLabels = { buildin: '内置工具', knowledge: '知识库', mysql: 'MySQL', debug: '调试' }
-const categoryColors = { buildin: 'blue', mysql: 'green', debug: 'orange' }
+const categoryColors = { buildin: 'blue', knowledge: 'purple', mysql: 'green', debug: 'orange' }
 
 const toolTags = (tool) => {
   const tags = []