fix: add alpine container to deploy job for shared hosting compatibility

.gitea/workflows/build.yml

@@ -86,8 +86,10 @@ jobs:
   #  DEPLOY (manual): to shared hosting via SSH
   # ──────────────────────────────────────────────
   deploy:
-    name: Deploy to production
+    name: Deploy to shared hosting
     runs-on: ubuntu-latest
+    container:
+      image: alpine:3.20
     if: github.ref == 'refs/heads/develop'
     needs: [lint, build]
     environment:
@@ -97,17 +99,17 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Download build artifacts
+      - name: Install SSH and rsync
+        run: |
+          apk add --no-cache openssh-client sshpass rsync
+
+      - name: Download built artifacts
         uses: actions/download-artifact@v4
         with:
           name: dist
           path: dist/
 
-      - name: Install SSH client
-        run: |
-          apk add --no-cache openssh-client sshpass rsync
-
-      - name: Deploy via rsync
+      - name: Deploy built files to shared hosting
         run: |
           sshpass -p "${{ secrets.SSH_PASSWORD }}" rsync -avz --delete \
             -e "ssh -p ${{ vars.SSH_PORT || 22 }} -o StrictHostKeyChecking=no" \