feat: 优化工作流参数编辑与告警交互

- 新增 ParamTokenEditor，支持参数选择插入、token 高亮、整段删除与光标避让

- 参数候选改为动态监测，未映射参数可选择并在下拉与输入框顶部告警

- 接入知识库/搜索引擎/LLM/动态代码/HTTP Body 及 SQL、查询数据自定义节点

- 优化 Http 节点布局并补充参数解析工具与单测

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

@@ -1,6 +1,6 @@
 <script lang="ts">
   import NodeWrapper from '../core/NodeWrapper.svelte';
-  import {type Node, type NodeProps, useSvelteFlow} from '@xyflow/svelte';
+  import {type Node, type NodeProps, useNodesData, useSvelteFlow} from '@xyflow/svelte';
   import {Button, Chosen, Heading, Input, Select, Textarea} from '../base';
   import RefParameterList from '../core/RefParameterList.svelte';
   import {getCurrentNodeId} from '#components/utils/NodeUtils';
@@ -8,6 +8,7 @@
   import {getOptions} from '../utils/NodeUtils';
   import OutputDefList from '../core/OutputDefList.svelte';
   import {fillParameterId} from '../utils/useAddParameter.svelte.js';
+  import ParamTokenEditor from '../core/ParamTokenEditor.svelte';
 
   const { data, ...rest }: {
         data: NodeProps['data'],
@@ -15,9 +16,13 @@
     } = $props();
 
     const currentNodeId = getCurrentNodeId();
+    let currentNode = useNodesData(currentNodeId);
     const { addParameter } = useAddParameter();
     const flowInstance = useSvelteFlow();
     const { updateNodeData: updateNodeDataInner } = flowInstance;
+    const editorParameters = $derived.by(() => {
+        return (currentNode?.current?.data?.parameters as Array<any>) || data.parameters || [];
+    });
 
     const updateNodeData = (data: Record<string, any>) => {
         updateNodeDataInner(currentNodeId, data);
@@ -104,19 +109,47 @@
             {#if form.type === 'input'}
                 <div class="setting-title">{form.label}</div>
                 <div class="setting-item">
-                    <Input
-                        placeholder={form.placeholder}
-                        style="width: 100%"
-                        value={data[form.name] || form.defaultValue}
-                        {...form.attrs}
-                        onchange={(e)=>{
+                    {#if form.templateSupport}
+                        <ParamTokenEditor
+                            mode="input"
+                            placeholder={form.placeholder}
+                            style="width: 100%"
+                            value={data[form.name] || form.defaultValue}
+                            parameters={editorParameters}
+                            {...form.attrs}
+                            oninput={(e)=>{
                                 updateNodeDataByEvent(form.name,e)
                             }}
-                    />
+                        />
+                    {:else}
+                        <Input
+                            placeholder={form.placeholder}
+                            style="width: 100%"
+                            value={data[form.name] || form.defaultValue}
+                            {...form.attrs}
+                            onchange={(e)=>{
+                                updateNodeDataByEvent(form.name,e)
+                            }}
+                        />
+                    {/if}
                 </div>
             {:else if form.type === 'textarea'}
                 <div class="setting-title">{form.label}</div>
                 <div class="setting-item">
+                    {#if form.templateSupport}
+                        <ParamTokenEditor
+                            mode="textarea"
+                            rows={3}
+                            placeholder={form.placeholder}
+                            style="width: 100%"
+                            value={data[form.name] || form.defaultValue}
+                            parameters={editorParameters}
+                            {...form.attrs}
+                            oninput={(e)=>{
+                                updateNodeDataByEvent(form.name,e)
+                            }}
+                        />
+                    {:else}
                         <Textarea
                             rows={3}
                             placeholder={form.placeholder}
@@ -127,6 +160,7 @@
                                 updateNodeDataByEvent(form.name,e)
                             }}
                         />
+                    {/if}
                 </div>
             {:else if form.type === 'slider'}
                 <div class="setting-title">{form.label}</div>
@@ -246,5 +280,3 @@
     }
 </style>
 
-
-