Refine pnpm migration based on review feedback

• Replace SKIP_SHARP_FILTERING with SHARP_IGNORE_GLOBAL_LIBVIPS environment variable
• Improve Sharp package filtering to include specific Linux architectures for Docker builds
• Optimize Dockerfile dependency caching with improved layer structure
• Clean up workspace configuration and remove redundant settings

web/Dockerfile

@@ -6,7 +6,7 @@ ENV CHOKIDAR_USEPOLLING=true \
 
 RUN npm install --global corepack@latest && \
   corepack enable && corepack install -g pnpm && \
-  apk add --no-cache tini make bash&& \
+  apk add --no-cache tini make bash && \
   mkdir -p /buildcache/pnpm-store && \
   pnpm config set store-dir /buildcache/pnpm-store