Neon / portal template support (#713)

TODOs:
- [x] Do restart when checkout / restore if there is a DB
- [x] List all branches (branch id, name, date)
- [x] Allow checking out versions with no DB
- [x] safeguard to never delete main branches
- [x] create app hook for neon template
- [x] weird UX with connector on configure panel
- [x] tiny neon logo in connector
- [x] deploy to vercel
- [x] build forgot password page
- [x] what about email setup
- [x] lots of imgix errors
- [x] edit file - db snapshot
- [x] DYAD_DISABLE_DB_PUSH
- [ ] update portal doc
- [x] switch preview branch to be read-only endpoint
- [x] disable supabase sys prompt if neon is enabled
- [ ] https://payloadcms.com/docs/upload/storage-adapters
- [x] need to use main branch...

Phase 2?
- [x] generate DB migrations

src/pages/settings.tsx

@@ -16,11 +16,13 @@ import { useRouter } from "@tanstack/react-router";
 import { GitHubIntegration } from "@/components/GitHubIntegration";
 import { VercelIntegration } from "@/components/VercelIntegration";
 import { SupabaseIntegration } from "@/components/SupabaseIntegration";
+
 import { Switch } from "@/components/ui/switch";
 import { Label } from "@/components/ui/label";
 import { AutoFixProblemsSwitch } from "@/components/AutoFixProblemsSwitch";
 import { AutoUpdateSwitch } from "@/components/AutoUpdateSwitch";
 import { ReleaseChannelSelector } from "@/components/ReleaseChannelSelector";
+import { NeonIntegration } from "@/components/NeonIntegration";
 
 export default function SettingsPage() {
   const [isResetDialogOpen, setIsResetDialogOpen] = useState(false);
@@ -112,6 +114,7 @@ export default function SettingsPage() {
               <GitHubIntegration />
               <VercelIntegration />
               <SupabaseIntegration />
+              <NeonIntegration />
             </div>
           </div>