GitHub 액션 제거: Gitea Actions 호환성 개선

문제:
- webfactory/ssh-agent@v0.9.0 (GitHub 액션)이 Gitea에서 작동하지 않음
- "Setup SSH key" 단계에서 실패

해결:
- SSH 키 설정을 수동으로 구현
- ~/.ssh/config 파일로 'deploy' 호스트 alias 생성
- 모든 ssh/scp 명령을 'deploy' alias로 단순화
- GitHub Actions 의존성 완전 제거

변경 사항:
1. SSH 키를 ~/.ssh/deploy_key로 직접 작성
2. ~/.ssh/config에 deploy 호스트 설정 (StrictHostKeyChecking no)
3. scp/ssh 명령을 "deploy" alias로 변경
4. 더 안정적이고 Gitea 호환성 높은 배포 프로세스

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -48,19 +48,26 @@ jobs:
           cat ./publish/web/wwwroot/version.txt
 
       - name: Setup SSH key
-        uses: webfactory/ssh-agent@v0.9.0
-        with:
-          ssh-private-key: ${{ secrets.DEPLOY_SSH_KEY }}
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.DEPLOY_SSH_KEY }}" > ~/.ssh/deploy_key
+          chmod 600 ~/.ssh/deploy_key
+          cat >> ~/.ssh/config << EOF
+          Host deploy
+            HostName ${{ secrets.DEPLOY_HOST }}
+            User ${{ secrets.DEPLOY_USER }}
+            IdentityFile ~/.ssh/deploy_key
+            StrictHostKeyChecking no
+          EOF
+          chmod 644 ~/.ssh/config
 
       - name: Deploy Web
         run: |
           WEB_TIMESTAMP=$(date +%Y%m%d_%H%M%S)
-          mkdir -p ~/.ssh
-          echo "${{ secrets.DEPLOY_HOST }}" >> ~/.ssh/known_hosts || true
           tar -czf web_publish.tar.gz -C publish web
-          scp web_publish.tar.gz ${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }}:/tmp/
+          scp web_publish.tar.gz deploy:/tmp/
 
-          ssh ${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }} /bin/bash << 'EOF'
+          ssh deploy /bin/bash << 'EOF'
           WEB_TIMESTAMP=$(date +%Y%m%d_%H%M%S)
           WEB_DEPLOY_DIR="/home/${{ secrets.DEPLOY_USER }}/deployments/taxbaik_${WEB_TIMESTAMP}"
           mkdir -p "$WEB_DEPLOY_DIR"
@@ -95,9 +102,9 @@ jobs:
         run: |
           ADMIN_TIMESTAMP=$(date +%Y%m%d_%H%M%S)
           tar -czf admin_publish.tar.gz -C publish admin
-          scp admin_publish.tar.gz ${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }}:/tmp/
+          scp admin_publish.tar.gz deploy:/tmp/
 
-          ssh ${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }} /bin/bash << 'EOF'
+          ssh deploy /bin/bash << 'EOF'
           ADMIN_TIMESTAMP=$(date +%Y%m%d_%H%M%S)
           ADMIN_DEPLOY_DIR="/home/${{ secrets.DEPLOY_USER }}/deployments/taxbaik_admin_${ADMIN_TIMESTAMP}"
           mkdir -p "$ADMIN_DEPLOY_DIR"