Maple Node.js style

Use @opentelemetry/sdk-node loaded with --import (Bun: --preload) so the SDK starts before any framework code runs.

// telemetry.ts
import { register } from "node:module"
import { NodeSDK } from "@opentelemetry/sdk-node"
import { getNodeAutoInstrumentations } from "@opentelemetry/auto-instrumentations-node"
import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http"
import { OTLPLogExporter } from "@opentelemetry/exporter-logs-otlp-http"
import { OTLPMetricExporter } from "@opentelemetry/exporter-metrics-otlp-http"
import { BatchLogRecordProcessor } from "@opentelemetry/sdk-logs"
import { PeriodicExportingMetricReader } from "@opentelemetry/sdk-metrics"
import { resourceFromAttributes } from "@opentelemetry/resources"

// ESM apps only: lets auto-instrumentation patch ESM-only packages. Omit for CommonJS.
register("@opentelemetry/instrumentation/hook.mjs", import.meta.url)