CHORE(merge): merge from develop

- Initial setup and all features from develop branch
- Includes: auth, deploy, docker, style fixes
- K3S deployment configuration

nextjs/app/api/announcements/[id]/route.ts

@@ -0,0 +1,132 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { prisma } from '@/lib/prisma';
+import { DeleteObjectCommand } from '@aws-sdk/client-s3';
+import { s3Client, S3_CONFIG } from '@/const';
+import { generateSignedUrl } from '@/lib/s3';
+
+const IMAGE_EXTENSIONS = ['jpg', 'jpeg', 'png', 'webp'];
+
+// GET: 특정 공지사항 조회
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    const { id: idParam } = await params;
+    const id = parseInt(idParam);
+
+    if (isNaN(id)) {
+      return NextResponse.json(
+        { success: false, message: '유효하지 않은 ID입니다.' },
+        { status: 400 }
+      );
+    }
+
+    const announcement = await prisma.announcement.update({
+      where: { id },
+      data: { viewCount: { increment: 1 } },
+      include: {
+        author: {
+          select: {
+            id: true,
+            userId: true,
+            userName: true,
+          },
+        },
+        files: true,
+      },
+    });
+
+    // 이미지 파일에 signedUrl 추가
+    const filesWithUrls = await Promise.all(
+      (announcement.files || []).map(async (file) => {
+        const ext = file.fileName.split('.').pop()?.toLowerCase();
+        const isImage = IMAGE_EXTENSIONS.includes(ext || '');
+        return {
+          ...file,
+          signedUrl: isImage ? await generateSignedUrl(file.fileKey) : undefined,
+        };
+      })
+    );
+
+    return NextResponse.json({
+      success: true,
+      data: {
+        ...announcement,
+        files: filesWithUrls,
+      },
+    });
+  } catch (err) {
+    console.error('Get announcement error:', err);
+    const errorMessage = err instanceof Error ? err.message : '공지사항 조회에 실패했습니다.';
+    return NextResponse.json(
+      { success: false, message: errorMessage },
+      { status: 500 }
+    );
+  }
+}
+
+// DELETE: 공지사항 삭제
+export async function DELETE(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    const { id: idParam } = await params;
+    const id = parseInt(idParam);
+
+    if (isNaN(id)) {
+      return NextResponse.json(
+        { success: false, message: '유효하지 않은 ID입니다.' },
+        { status: 400 }
+      );
+    }
+
+    // 1. 공지사항 및 첨부파일 조회
+    const announcement = await prisma.announcement.findUnique({
+      where: { id },
+      include: {
+        files: true,
+      },
+    });
+
+    if (!announcement) {
+      return NextResponse.json(
+        { success: false, message: '공지사항을 찾을 수 없습니다.' },
+        { status: 404 }
+      );
+    }
+
+    // 2. S3에서 첨부파일 삭제
+    if (announcement.files && announcement.files.length > 0) {
+      await Promise.all(
+        announcement.files.map((file) =>
+          s3Client.send(
+            new DeleteObjectCommand({
+              Bucket: S3_CONFIG.BUCKET_NAME,
+              Key: file.fileKey,
+            })
+          )
+        )
+      );
+    }
+
+    // 3. DB에서 삭제 (files는 onDelete: Cascade로 자동 삭제됨)
+    await prisma.announcement.delete({
+      where: { id },
+    });
+
+    return NextResponse.json({
+      success: true,
+      message: '삭제되었습니다.',
+    });
+  } catch (err) {
+    console.error('Delete announcement error:', err);
+    const errorMessage = err instanceof Error ? err.message : '삭제에 실패했습니다.';
+    return NextResponse.json(
+      { success: false, message: errorMessage },
+      { status: 500 }
+    );
+  }
+}
+