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.github/workflows/deploy.yml

@@ -41,8 +41,10 @@ jobs:
       - name: Build and push Docker image
         working-directory: backend
         run: |
-          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/piroin-backend:latest .
+          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/piroin-backend:latest \
+                       -t ${{ secrets.DOCKERHUB_USERNAME }}/piroin-backend:${{ github.sha }} .
           docker push ${{ secrets.DOCKERHUB_USERNAME }}/piroin-backend:latest
+          docker push ${{ secrets.DOCKERHUB_USERNAME }}/piroin-backend:${{ github.sha }}
 
       - name: Deploy to EC2
         uses: appleboy/ssh-action@v1.0.0
@@ -59,7 +61,7 @@ jobs:
               --restart unless-stopped \
               -p 8080:8080 \
               -v piroin-uploads:/app/uploads \
-              --health-cmd="curl -f http://localhost:8080/actuator/health || exit 1" \
+              --health-cmd="wget -q -O /dev/null http://localhost:8080/actuator/health || exit 1" \
               --health-interval=30s \
               --health-timeout=10s \
               --health-retries=3 \
@@ -70,3 +72,4 @@ jobs:
               -e JWT_SECRET="${{ secrets.JWT_SECRET }}" \
               -e JWT_EXPIRATION="${{ secrets.JWT_EXPIRATION }}" \
               ${{ secrets.DOCKERHUB_USERNAME }}/piroin-backend:latest
+            docker image prune -a -f

frontend/src/pages/pirocheck/students/StudentList.module.css

@@ -21,7 +21,6 @@
     align-items: center;
     background: var(--gray600);
     border-radius: 10px;
-    overflow: hidden;
     width: 480px;
     max-width: calc(100vw - 56px);
     margin-bottom: 30px;
@@ -31,6 +30,7 @@
 
 .searchInput {
     flex: 1;
+    min-width: 0;      
     background: transparent;
     border: none;
     outline: none;

frontend/src/pages/qna/QnADetailPage.js

@@ -92,6 +92,7 @@ function QnADetailPage() {
     const [selectedImages, setSelectedImages] = useState([]);       // 여러 장
     const [imagePreviews, setImagePreviews] = useState([]);         // 여러 장 미리보기
     const fileInputRef = useRef(null);
+    const commentTextareaRef = useRef(null);
 
     // ── 댓글 수정 상태 ───────────────────────────────
     const [commentMenuId, setCommentMenuId] = useState(null);
@@ -420,6 +421,7 @@ function QnADetailPage() {
                 setImagePreviews([]);
                 // 로컬 상태에 blob URL을 직접 넣으면 새로고침 시 이미지가 깨지므로
                 // 등록 직후 fetchQuestion으로 서버의 정식 URL을 받아온다.
+                if (commentTextareaRef.current) commentTextareaRef.current.style.height = 'auto';
                 await fetchQuestion();
             }
         } catch (err) {
@@ -709,14 +711,25 @@ function QnADetailPage() {
                         style={{ display: 'none' }}
                         onChange={handleImageSelect}
                     />
-                    <input
+                    <textarea
                         id="commentInput"
+                        ref={commentTextareaRef}
                         className={styles.commentInput}
                         placeholder="댓글을 입력해주세요..."
                         value={commentText}
-                        onChange={e => setCommentText(e.target.value)}
-                        onKeyDown={e => { if (e.key === 'Enter' && !e.nativeEvent.isComposing) handleCommentSubmit(); }}
+                        onChange={e => {
+                            setCommentText(e.target.value);
+                            e.target.style.height = 'auto';
+                            e.target.style.height = `${Math.min(e.target.scrollHeight, 150)}px`;
+                        }}
+                        onKeyDown={e => {
+                            if (e.key === 'Enter' && !e.shiftKey && !e.nativeEvent.isComposing) {
+                                e.preventDefault();
+                                handleCommentSubmit();
+                            }
+                        }}
                         onPaste={handlePaste}
+                        rows={1}
                         disabled={isSubmitting}
                     />
                     <button

frontend/src/pages/qna/QnADetailPage.module.css

@@ -529,7 +529,7 @@
 
 .commentInputRow {
     display: flex;
-    align-items: center;
+    align-items: flex-end;
     width: 100%;
     gap: 8px;
 }
@@ -547,17 +547,24 @@
     justify-content: center;
     flex-shrink: 0;
     color: var(--gray600);
+    margin-bottom: 2px;
 }
 
 .commentInput {
     flex: 1;
+    min-width: 0;
+    resize: none;
     border: none;
     background: none;
     font-family: var(--font-main);
     font-size: 16px;
     color: var(--black);
     outline: none;
-    height: 100%;
+    line-height: 1.4;
+    padding: 7px 0;       
+    box-sizing: border-box;
+    max-height: 150px;
+    overflow-y: auto;
 }
 
 .commentInput::placeholder {
@@ -577,6 +584,7 @@
     flex-shrink: 0;
     padding: 0;
     transition: opacity 0.15s;
+    margin-bottom: 2px;
 }
 
 .submitBtn:disabled {