체험 계정도 업그레이드 승인되도록 수정

app/(admin)/maestros/[maestroId]/UpgradeRequestsSection.tsx

@@ -5,7 +5,7 @@ import { useRouter } from "next/navigation";
 import { ArrowUp } from "lucide-react";
 
 import { Button } from "@/components/ui/button";
-import { ACCOUNT_TYPES, ACTIVATE_STATUSES } from "@/lib/constants";
+import { ACCOUNT_TYPES, ACTIVATE_STATUSES, PAID_ACCOUNT_TYPE_VALUES } from "@/lib/constants";
 import { formatDateTime, getAccountTypeLabel, getRequestStatusLabel } from "@/lib/utils";
 import type { MaestroDetail } from "@/lib/maestros";
 
@@ -42,9 +42,14 @@ export function UpgradeRequestsSection({
   const [errorMessage, setErrorMessage] = useState("");
 
   const isTrial = activateStatus === ACTIVATE_STATUSES.TRIAL;
+  const isCurrentPaid = (PAID_ACCOUNT_TYPE_VALUES as readonly number[]).includes(accountType);
   const isUpgradeEnabled =
     selectedAccountType !== null &&
-    (isTrial ? selectedAccountType >= accountType : selectedAccountType > accountType);
+    (!isCurrentPaid
+      ? true
+      : isTrial
+        ? selectedAccountType >= accountType
+        : selectedAccountType > accountType);
   const isDisabled = isCreating || isPending;
 
   async function handleUpgrade() {
@@ -111,7 +116,13 @@ export function UpgradeRequestsSection({
               <option value="">요금제 선택</option>
               {upgradeOptions.map((opt) => (
                 <option
-                  disabled={isTrial ? opt.value < accountType : opt.value <= accountType}
+                  disabled={
+                    isCurrentPaid
+                      ? isTrial
+                        ? opt.value < accountType
+                        : opt.value <= accountType
+                      : false
+                  }
                   key={opt.value}
                   value={opt.value}
                 >