feat: SaaS price plan frontend (#1683)

Co-authored-by: StyleZhang <jasonapring2015@outlook.com>

web/app/components/billing/header-billing-btn/index.tsx

@@ -0,0 +1,46 @@
+'use client'
+import type { FC } from 'react'
+import React from 'react'
+import cn from 'classnames'
+import UpgradeBtn from '../upgrade-btn'
+import { Plan } from '../type'
+import { useProviderContext } from '@/context/provider-context'
+
+type Props = {
+  onClick: () => void
+}
+
+const HeaderBillingBtn: FC<Props> = ({
+  onClick,
+}) => {
+  const { plan, enableBilling, isFetchedPlan } = useProviderContext()
+  const {
+    type,
+  } = plan
+
+  const name = (() => {
+    if (type === Plan.professional)
+      return 'pro'
+    return type
+  })()
+  const classNames = (() => {
+    if (type === Plan.professional)
+      return 'border-[#E0F2FE] hover:border-[#B9E6FE] bg-[#E0F2FE] text-[#026AA2]'
+    if (type === Plan.team)
+      return 'border-[#E0EAFF] hover:border-[#C7D7FE] bg-[#E0EAFF] text-[#3538CD]'
+    return ''
+  })()
+
+  if (!enableBilling || !isFetchedPlan)
+    return null
+
+  if (type === Plan.sandbox)
+    return <UpgradeBtn onClick={onClick} isShort />
+
+  return (
+    <div onClick={onClick} className={cn(classNames, 'flex items-center h-[22px] px-2 rounded-md border text-xs font-semibold uppercase cursor-pointer')}>
+      {name}
+    </div>
+  )
+}
+export default React.memo(HeaderBillingBtn)