feat: remove preview env tracking

Author: gregnr

apps/postgres-new/.env.example

@@ -1,6 +1,5 @@
 NEXT_PUBLIC_SUPABASE_ANON_KEY="<supabase-anon-key>"
 NEXT_PUBLIC_SUPABASE_URL="<supabase-api-url>"
-NEXT_PUBLIC_IS_PREVIEW=true
 NEXT_PUBLIC_BROWSER_PROXY_DOMAIN="<browser-proxy-domain>"
 
 OPENAI_API_KEY="<openai-api-key>"

apps/postgres-new/components/app-provider.tsx

@@ -100,7 +100,6 @@ export default function AppProvider({ children }: AppProps) {
     setUser(undefined)
   }, [supabase])
 
-  const isPreview = process.env.NEXT_PUBLIC_IS_PREVIEW === 'true'
   const pgliteVersion = process.env.NEXT_PUBLIC_PGLITE_VERSION
   const { value: pgVersion } = useAsyncMemo(async () => {
     if (!dbManager) {
@@ -237,7 +236,6 @@ export default function AppProvider({ children }: AppProps) {
         isRateLimited,
         setIsRateLimited,
         focusRef,
-        isPreview,
         dbManager,
         pgliteVersion,
         pgVersion,
@@ -266,7 +264,6 @@ export type AppContextValues = {
   isRateLimited: boolean
   setIsRateLimited: (limited: boolean) => void
   focusRef: RefObject<FocusHandle>
-  isPreview: boolean
   dbManager?: DbManager
   pgliteVersion?: string
   pgVersion?: string

apps/postgres-new/components/layout.tsx

@@ -26,14 +26,13 @@ const loadFramerFeatures = () => import('./framer-features').then((res) => res.d
 export type LayoutProps = PropsWithChildren
 
 export default function Layout({ children }: LayoutProps) {
-  const { isPreview, isLegacyDomain, isLegacyDomainRedirect } = useApp()
+  const { isLegacyDomain, isLegacyDomainRedirect } = useApp()
   const isSmallBreakpoint = useBreakpoint('lg')
 
   return (
     <LazyMotion features={loadFramerFeatures}>
       <TooltipProvider delayDuration={0}>
         <div className="w-full h-full flex flex-col overflow-hidden">
-          {isPreview && <PreviewBanner />}
           {/* TODO: re-enable rename banner when ready */}
           {(isLegacyDomain || isLegacyDomainRedirect) && <RenameBanner />}
           <main className="flex-1 flex flex-col lg:flex-row min-h-0">
@@ -50,15 +49,6 @@ export default function Layout({ children }: LayoutProps) {
   )
 }
 
-function PreviewBanner() {
-  return (
-    <div className="px-3 py-3 flex justify-center text-sm text-center bg-neutral-800 text-white">
-      Heads up! This is a preview version of {currentDomainHostname}, so expect some changes here
-      and there.
-    </div>
-  )
-}
-
 function RenameBanner() {
   const { setIsRenameDialogOpen } = useApp()
   return (