chore: disable Next.js telemetry in Docker image

Dockerfile

@@ -3,6 +3,7 @@ WORKDIR /app
 COPY package.json package-lock.json ./
 RUN npm ci
 COPY . .
+ENV NEXT_TELEMETRY_DISABLED=1
 RUN npx next build --webpack
 
 FROM node:24-alpine AS runner
@@ -16,6 +17,7 @@ LABEL org.opencontainers.image.vendor="root.cloud"
 
 WORKDIR /app
 ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
 RUN addgroup --system --gid 1001 nodejs && \
     adduser --system --uid 1001 nextjs
 COPY --from=builder /app/public ./public