fix sharp binary installation in frontend image

frontend/Dockerfile

@@ -8,6 +8,15 @@ RUN apt-get update -y \
 
 COPY package*.json ./
 RUN npm ci --ignore-scripts --legacy-peer-deps
+RUN set -eux; \
+  arch="$(dpkg --print-architecture)"; \
+  if [ "$arch" = "amd64" ]; then \
+    npm rebuild sharp --platform=linux --arch=x64 || npm install --no-save sharp --platform=linux --arch=x64; \
+  elif [ "$arch" = "arm64" ]; then \
+    npm rebuild sharp --platform=linux --arch=arm64 || npm install --no-save sharp --platform=linux --arch=arm64; \
+  else \
+    npm rebuild sharp || true; \
+  fi
 
 COPY . .