feat: knowledge pipeline (#25360)

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web/app/components/datasets/documents/detail/settings/pipeline-settings/left-header.tsx

@@ -0,0 +1,42 @@
+import React, { useCallback } from 'react'
+import { RiArrowLeftLine } from '@remixicon/react'
+import Button from '@/app/components/base/button'
+import { useRouter } from 'next/navigation'
+import Effect from '@/app/components/base/effect'
+import { useTranslation } from 'react-i18next'
+
+type LeftHeaderProps = {
+  title: string
+}
+
+const LeftHeader = ({
+  title,
+}: LeftHeaderProps) => {
+  const { t } = useTranslation()
+  const { back } = useRouter()
+
+  const navigateBack = useCallback(() => {
+    back()
+  }, [back])
+
+  return (
+    <div className='relative flex flex-col gap-y-0.5 pb-2 pt-4'>
+      <div className='system-2xs-semibold-uppercase bg-pipeline-add-documents-title-bg bg-clip-text text-transparent'>
+        {title}
+      </div>
+      <div className='system-md-semibold text-text-primary'>
+        {t('datasetPipeline.addDocuments.steps.processDocuments')}
+      </div>
+      <Button
+        variant='secondary-accent'
+        className='absolute -left-11 top-3.5 size-9 rounded-full p-0'
+        onClick={navigateBack}
+      >
+        <RiArrowLeftLine className='size-5 ' />
+      </Button>
+      <Effect className='left-8 top-[-34px] opacity-20' />
+    </div>
+  )
+}
+
+export default React.memo(LeftHeader)