fix(deploy): apk add wget best-effort en Dockerfile.prod (redes sin CDN de Alpine)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/Dockerfile.prod

@@ -49,7 +49,8 @@ FROM node:22-alpine AS runtime
 
 WORKDIR /app
 
-RUN apk add --no-cache wget
+# wget de busybox ya viene en alpine; el apk es best-effort (redes restringidas sin CDN de Alpine)
+RUN apk add --no-cache wget || true
 
 RUN npm config set strict-ssl false && \
     npm install -g pnpm