feat(admin-auth): add first-start onboarding flow and dev db reset command

apps/admin/src/app/support/[key]/page.tsx

@@ -0,0 +1,23 @@
+import { notFound, redirect } from "next/navigation"
+import { LoginForm } from "@/app/login/login-form"
+import { resolveRoleFromServerContext } from "@/lib/access-server"
+import { resolveSupportLoginKey } from "@/lib/auth/server"
+
+export const dynamic = "force-dynamic"
+
+type Params = Promise<{ key: string }>
+
+export default async function SupportLoginPage({ params }: { params: Params }) {
+  const { key } = await params
+  const role = await resolveRoleFromServerContext()
+
+  if (role) {
+    redirect("/")
+  }
+
+  if (key !== resolveSupportLoginKey()) {
+    notFound()
+  }
+
+  return <LoginForm mode="signin" />
+}