Feat: conversation variable & variable assigner node (#7222)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: -LAN- <laipz8200@outlook.com>

web/app/components/workflow/panel/chat-variable-panel/components/variable-item.tsx

@@ -0,0 +1,49 @@
+import { memo, useState } from 'react'
+import { capitalize } from 'lodash-es'
+import { RiDeleteBinLine, RiEditLine } from '@remixicon/react'
+import { BubbleX } from '@/app/components/base/icons/src/vender/line/others'
+import type { ConversationVariable } from '@/app/components/workflow/types'
+import cn from '@/utils/classnames'
+
+type VariableItemProps = {
+  item: ConversationVariable
+  onEdit: (item: ConversationVariable) => void
+  onDelete: (item: ConversationVariable) => void
+}
+
+const VariableItem = ({
+  item,
+  onEdit,
+  onDelete,
+}: VariableItemProps) => {
+  const [destructive, setDestructive] = useState(false)
+  return (
+    <div className={cn(
+      'mb-1 px-2.5 py-2 bg-components-panel-on-panel-item-bg radius-md border border-components-panel-border-subtle shadow-xs hover:bg-components-panel-on-panel-item-bg-hover',
+      destructive && 'border-state-destructive-border hover:bg-state-destructive-hover',
+    )}>
+      <div className='flex items-center justify-between'>
+        <div className='grow flex gap-1 items-center'>
+          <BubbleX className='w-4 h-4 text-util-colors-teal-teal-700' />
+          <div className='text-text-primary system-sm-medium'>{item.name}</div>
+          <div className='text-text-tertiary system-xs-medium'>{capitalize(item.value_type)}</div>
+        </div>
+        <div className='shrink-0 flex gap-1 items-center text-text-tertiary'>
+          <div className='p-1 radius-md cursor-pointer hover:bg-state-base-hover hover:text-text-secondary'>
+            <RiEditLine className='w-4 h-4' onClick={() => onEdit(item)}/>
+          </div>
+          <div
+            className='p-1 radius-md cursor-pointer hover:bg-state-destructive-hover hover:text-text-destructive'
+            onMouseOver={() => setDestructive(true)}
+            onMouseOut={() => setDestructive(false)}
+          >
+            <RiDeleteBinLine className='w-4 h-4' onClick={() => onDelete(item)}/>
+          </div>
+        </div>
+      </div>
+      <div className='text-text-tertiary system-xs-regular truncate'>{item.description}</div>
+    </div>
+  )
+}
+
+export default memo(VariableItem)