import * as Sentry from "@sentry/cloudflare";import handler from "@tanstack/react-start/server-entry"; import { McpSessionDO as McpSessionDOBase } from "./mcp-session"; // ---------------------------------------------------------------------------// Sentry config// --------------------------------------------------------------------------- const sentryOptions = (env: Env) => ({  dsn: env.SENTRY_DSN,  tracesSampleRate: 0,  enableLogs: true,  sendDefaultPii: true,  skipOpenTelemetrySetup: true,  // Our DO methods (init/handleRequest/alarm) live on the prototype, not on  // the instance. Sentry's default DO auto-wrap only visits own properties,  // which misses prototype methods — so errors thrown inside init() never  // reach Sentry. This flag opts into prototype-method instrumentation.  instrumentPrototypeMethods: true,}); // ---------------------------------------------------------------------------// Durable Object — wrapped with Sentry so DO errors land in Sentry (inits the// client inside the DO isolate, which plain `Sentry.captureException` cannot// do on its own). OTEL is installed through Effect layers, not a global fetch// wrapper.// --------------------------------------------------------------------------- export const McpSessionDO = Sentry.instrumentDurableObjectWithSentry(  sentryOptions,  McpSessionDOBase,); // ---------------------------------------------------------------------------// Worker fetch handler// --------------------------------------------------------------------------- const fetchHandler = handler.fetch as (  request: Request,  env: Env,  ctx: ExecutionContext,) => Response | Promise<Response>; const cloudflareHandler: ExportedHandler<Env> = {  fetch: (request, env, ctx) => fetchHandler(request, env, ctx),}; export default Sentry.withSentry(sentryOptions, cloudflareHandler);