feat: align analytics and error naming standards and fix Umami proxy

Dockerfile

@@ -6,12 +6,16 @@ WORKDIR /app
 ARG NEXT_PUBLIC_BASE_URL
 ARG NEXT_PUBLIC_TARGET
 ARG DIRECTUS_URL
+ARG UMAMI_WEBSITE_ID
+ARG UMAMI_API_ENDPOINT
 ARG NPM_TOKEN
 
 # Environment variables for Next.js build
 ENV NEXT_PUBLIC_BASE_URL=$NEXT_PUBLIC_BASE_URL
 ENV NEXT_PUBLIC_TARGET=$NEXT_PUBLIC_TARGET
 ENV DIRECTUS_URL=$DIRECTUS_URL
+ENV UMAMI_WEBSITE_ID=$UMAMI_WEBSITE_ID
+ENV UMAMI_API_ENDPOINT=$UMAMI_API_ENDPOINT
 ENV SKIP_RUNTIME_ENV_VALIDATION=true
 ENV CI=true