feat: 工作流适配数据中枢查询节点

- 新增查询数据与写入数据节点并移除旧数据中心节点入口

- 将查询数据节点切换为连接服务加 SQL 的执行模型

- 同步更新工作流校验、提示词上下文与设计器交互

easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/LLMNode.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import NodeWrapper from '../core/NodeWrapper.svelte';
-  import {type NodeProps, useNodesData, useSvelteFlow} from '@xyflow/svelte';
+  import {type NodeProps, useNodesData, useStore, useSvelteFlow} from '@xyflow/svelte';
   import {Button, FloatingTrigger, Heading, Select} from '../base';
   import {MenuButton} from '../base/index.js';
   import RefParameterList from '../core/RefParameterList.svelte';
@@ -20,8 +20,42 @@
     const currentNodeId = getCurrentNodeId();
     let currentNode = useNodesData(currentNodeId);
     const { addParameter } = useAddParameter();
+    const { nodes } = $derived(useStore());
     const editorParameters = $derived.by(() => {
-        return (currentNode?.current?.data?.parameters as Array<any>) || data.parameters || [];
+        const parameters = [
+            ...(((currentNode?.current?.data?.parameters as Array<any>) || data.parameters || []) as Array<any>)
+        ];
+        if (queryContextNodeIds.length > 0) {
+            parameters.push({
+                id: 'queryDataContext',
+                name: 'queryDataContext',
+                dataType: 'String',
+                description: '数据查询规则与连接表摘要',
+                required: false,
+                nameDisabled: true,
+                dataTypeDisabled: true,
+                deleteDisabled: true
+            });
+        }
+        return parameters;
+    });
+    const queryContextOptions = $derived.by(() => {
+        return (nodes || [])
+            .filter((node: any) => node?.id !== currentNodeId && node?.type === 'search-dataset-node')
+            .map((node: any) => ({
+                label: node?.data?.title || '查询数据',
+                value: node.id,
+                displayLabel: node?.data?.title || '查询数据',
+                description: node?.data?.sourceName ? '连接服务：' + node.data.sourceName : '未选择连接服务',
+            }));
+    });
+    const queryContextNodeIds = $derived.by(() => {
+        const ids = (currentNode?.current?.data?.queryContextNodeIds as Array<any>) || data.queryContextNodeIds || [];
+        return Array.isArray(ids)
+            ? ids
+                .map((item: any) => (item == null ? '' : String(item)))
+                .filter((item: string) => item.trim().length > 0)
+            : [];
     });
 
     const options = getOptions();
@@ -29,33 +63,29 @@
     let llmArray = $state<SelectItem[]>([]);
     onMount(async () => {
         const newLLMs = await options.provider?.llm?.();
-        
+
         const isFlat = newLLMs?.every(item => !item.children);
-        
+
         if (isFlat && newLLMs && newLLMs.length > 0) {
             const grouped = new Map<string, SelectItem[]>();
             for (const llm of newLLMs) {
-                // If it still has a slash, parse it; otherwise, check if there's a custom logic we can infer brand.
-                // In WorkflowDesign we pass `item.modelProvider?.providerName` via some other way, but here it's flat.
-                // Actually, the label is just the title now (e.g. 'deepseek-chat').
-                // Wait, LLMNode doesn't know the brand unless it's in the string or we modify WorkflowDesign to pass `brand`.
-                // Let's modify WorkflowDesign to pass `brand` instead.
                 let brand = (llm as any).brand || '其他';
-                let modelName = llm.label;
-                
+                const modelName = typeof llm.label === 'string'
+                    ? llm.label
+                    : ((llm.displayLabel as string | undefined) || '模型');
+
                 if (!grouped.has(brand)) {
                     grouped.set(brand, []);
                 }
                 grouped.get(brand)!.push({
                     ...llm,
                     label: modelName,
-                    displayLabel: modelName // 外部选中时也只显示模型名称
+                    displayLabel: modelName
                 });
             }
 
             const treeArray: SelectItem[] = [];
             for (const [brand, models] of grouped) {
-                // Try to get a representative icon for the brand from its children
                 let groupIcon = undefined;
                 if (models.length > 0) {
                     const modelWithIcon = models.find(m => m.icon);
@@ -72,9 +102,9 @@
                     children: models
                 });
             }
-            llmArray.push(...treeArray);
+            llmArray = treeArray;
         } else {
-            llmArray.push(...(newLLMs || []));
+            llmArray = [...(newLLMs || [])];
         }
     });
 
@@ -121,6 +151,26 @@
         }
     });
 
+    $effect(() => {
+        const validIds = new Set(queryContextOptions.map((item) => String(item.value)));
+        const normalized = queryContextNodeIds.filter((item) => validIds.has(item));
+        if (normalized.length !== queryContextNodeIds.length) {
+            updateNodeData(currentNodeId, {
+                queryContextNodeIds: normalized
+            });
+        }
+    });
+
+    const toggleQueryContextNode = (nodeId: string) => {
+        const currentIds = [...queryContextNodeIds];
+        const exists = currentIds.includes(nodeId);
+        updateNodeData(currentNodeId, {
+            queryContextNodeIds: exists
+                ? currentIds.filter((item) => item !== nodeId)
+                : [...currentIds, nodeId]
+        });
+    };
+
 
 </script>
 
@@ -159,6 +209,20 @@
 
     <RefParameterList dataKeyName="images" noneParameterText="无图片参数" />
 
+    <Heading level={3} mt="10px">查询数据信息</Heading>
+    <div class="setting-item">
+        <Select
+            items={queryContextOptions}
+            multiple={true}
+            style="width: 100%"
+            placeholder="请选择查询数据节点"
+            onSelect={(item)=>{
+                toggleQueryContextNode(String(item.value));
+            }}
+            value={queryContextNodeIds}
+        />
+    </div>
+
     <Heading level={3} mt="10px">模型设置</Heading>
     <div class="setting-title">模型</div>
     <div class="setting-item">