feat: add reasoning format processing to LLMNode for <think> tag handling (#23313)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

web/app/components/workflow/nodes/llm/panel.tsx

@@ -17,6 +17,7 @@ import type { NodePanelProps } from '@/app/components/workflow/types'
 import Tooltip from '@/app/components/base/tooltip'
 import Editor from '@/app/components/workflow/nodes/_base/components/prompt/editor'
 import StructureOutput from './components/structure-output'
+import ReasoningFormatConfig from './components/reasoning-format-config'
 import Switch from '@/app/components/base/switch'
 import { RiAlertFill, RiQuestionLine } from '@remixicon/react'
 import { fetchAndMergeValidCompletionParams } from '@/utils/completion-params'
@@ -61,6 +62,7 @@ const Panel: FC<NodePanelProps<LLMNodeType>> = ({
     handleStructureOutputEnableChange,
     handleStructureOutputChange,
     filterJinja2InputVar,
+    handleReasoningFormatChange,
   } = useConfig(id, data)
 
   const model = inputs.model
@@ -239,6 +241,14 @@ const Panel: FC<NodePanelProps<LLMNodeType>> = ({
           config={inputs.vision?.configs}
           onConfigChange={handleVisionResolutionChange}
         />
+
+        {/* Reasoning Format */}
+        <ReasoningFormatConfig
+          // Default to tagged for backward compatibility
+          value={inputs.reasoning_format || 'tagged'}
+          onChange={handleReasoningFormatChange}
+          readonly={readOnly}
+        />
       </div>
       <Split />
       <OutputVars