커스텀 클레임 test 코드 추가

devfront/tests/devfront-developer-request.spec.ts

@@ -147,7 +147,9 @@ test.describe("DevFront developer request and management", () => {
     await nameInput.fill("E2E Test RP");
     await nameInput.press("Tab");
 
-    const uriInput = page.locator("textarea.font-mono");
+    const uriInput = page.getByRole("textbox", {
+      name: /Redirect URIs|인증 콜백 URL|Callback/i,
+    });
     await uriInput.fill("https://example.com/callback");
     await uriInput.press("Tab");