import { createMiddleware, createStart } from "@tanstack/react-start"; import { cloudApiHandler } from "./app";import { isAppOwnedPath } from "./app-paths";import { prepareMcpOrgScope } from "./mcp/mount";import { marketingMiddleware, posthogProxyMiddleware, sentryTunnelMiddleware } from "./edge"; // ---------------------------------------------------------------------------// The unified app web handler — `ExecutorApp.make`'s `toWebHandler` (app.ts).// It serves EVERY app-owned path in one Effect HTTP layer: everything under// `/api/*` (the protected plugin API + account + org, plus the cloud// `extensions.routes` — Swagger at `/api/docs`, the Autumn billing proxy at// `/api/billing/*`), AND the `/mcp` serving envelope + its `/.well-known/*`// OAuth discovery docs — exactly like self-host's single `toWebHandler`.// start.ts no longer hand-routes those surfaces; it only decides// app-owned-vs-Start and forwards (after normalizing org-scoped MCP paths).// --------------------------------------------------------------------------- // Instantiate the unified app handler LAZILY, on the first server request that// needs it. This is load-bearing for the CLIENT bundle: TanStack Start bundles// `start.ts` into the browser build but strips `.server()` callback *bodies*, so// any symbol referenced only inside a server callback is tree-shaken out of the// client. A module-top-level `cloudApiHandler()` would instead survive that// stripping and drag `./app` → `observability/telemetry` → `cloudflare:workers`// (a workerd-only virtual module) into the browser build, breaking it. Keeping// the call inside the server callback mirrors how every other server concern// here stays server-only.let app: ReturnType<typeof cloudApiHandler> | undefined;const getApp = () => (app ??= cloudApiHandler()); // app-owned = anything under `/api/*` (incl. the cloud extension routes) OR an// MCP/OAuth-discovery path (see `./app-paths`). The app handler serves these at// their real paths, so we forward unmodified — except `prepareMcpOrgScope`// rewrites an org-scoped MCP path (`/org_xxx/mcp`) to the bare path the shared// envelope routes, pinning the org in an internal header (a no-op for everything// else, including `/api/*`).const appRequestMiddleware = createMiddleware({ type: "request" }).server(  ({ pathname, request, next }) => {    if (isAppOwnedPath(pathname)) return getApp().handler(prepareMcpOrgScope(request));    return next();  },); // The edge concerns (marketing proxy, sentry tunnel, posthog proxy) live in// `./edge`; they run before the app's own dispatch. Ordering is load-bearing:// marketing first (production landing/page proxy), then the analytics tunnels,// then the unified app plane (api + mcp).export const startInstance = createStart(() => ({  requestMiddleware: [    marketingMiddleware,    sentryTunnelMiddleware,    posthogProxyMiddleware,    appRequestMiddleware,  ],}));