Merge pull request #31 from kameiryohei/refcta-deleteComponents

必要のないコンポーネントとテストコードを削除とレスポンシブ画面のUI修正

Author: kameiryohei

__test__/LoginPage.test.tsx

@@ -36,7 +36,7 @@ const CourseReview = ({ id, auth_id }: CourseReviewProps) => {
         body: JSON.stringify({
           title: data.title,
           planId: Number(id),
-          auth_id: auth_id,
+          auth_id: auth_id || null,
         }),
         headers: {
           "Content-Type": "application/json",

__test__/NotAllowPage.test.tsx

@@ -7,22 +7,22 @@ export const POST = async (req: Request) => {
 
     await prisma.$connect();
 
-    const author = await prisma.user.findUnique({
-      where: {
-        auth_id: auth_id,
-      },
-      select: {
-        id: true,
-      },
-    });
+    // auth_idがある場合のみユーザーを検索
+    const author = auth_id
+      ? await prisma.user.findUnique({
+          where: { auth_id: auth_id },
+          select: { id: true },
+        })
+      : null;
 
     const post = await prisma.post.create({
       data: {
         title: title,
         planId: planId,
-        authorId: author?.id,
+        authorId: author?.id || null, // authorが見つからない場合またはauth_idが無い場合はnull
       },
     });
+
     return NextResponse.json({ message: "Success", post }, { status: 201 });
   } catch (error) {
     return NextResponse.json(