feat: llm support struct output (#17994)

Co-authored-by: twwu <twwu@dify.ai>
Co-authored-by: zxhlyh <jasonapring2015@outlook.com>

web/app/components/workflow/nodes/knowledge-retrieval/components/metadata/metadata-filter/index.tsx

@@ -39,7 +39,8 @@ const MetadataFilter = ({
       disabled={metadataFilterMode === MetadataFilteringModeEnum.disabled || metadataFilterMode === MetadataFilteringModeEnum.manual}
       collapsed={collapsed}
       onCollapse={setCollapsed}
-      trigger={
+      hideCollapseIcon
+      trigger={collapseIcon => (
         <div className='flex grow items-center justify-between pr-4'>
           <div className='flex items-center'>
             <div className='system-sm-semibold-uppercase mr-0.5 text-text-secondary'>
@@ -52,6 +53,7 @@ const MetadataFilter = ({
                 </div>
               )}
             />
+            {collapseIcon}
           </div>
           <div className='flex items-center'>
             <MetadataFilterSelector
@@ -67,7 +69,7 @@ const MetadataFilter = ({
             }
           </div>
         </div>
-      }
+      )}
     >
       <>
         {