B2B-88: add starter kit structure and elements

app/auth/confirm/route.ts

@@ -0,0 +1,17 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+import { createAuthCallbackService } from '@kit/supabase/auth';
+import { getSupabaseServerClient } from '@kit/supabase/server-client';
+
+import pathsConfig from '~/config/paths.config';
+
+export async function GET(request: NextRequest) {
+  const service = createAuthCallbackService(getSupabaseServerClient());
+
+  const url = await service.verifyTokenHash(request, {
+    joinTeamPath: pathsConfig.app.joinTeam,
+    redirectPath: pathsConfig.app.home,
+  });
+
+  return NextResponse.redirect(url);
+}