fix(build): keep supertokens server init out of the client module graph

- ensureSuperTokensBackend moved to the health route handler; the dynamic
  imports in exclusions and alerts dragged recipes into the client build

src/app/routes/api/health.ts

@@ -1,11 +1,13 @@
 import { createFileRoute } from "@tanstack/react-router";
 import { ensureTelemetryScheduler } from "@/lib/telemetry/scheduler.server";
 import { getHealthSnapshot } from "@/lib/telemetry/health.server";
+import { ensureSuperTokensBackend } from "@/lib/supertokens/server";
 
 export const Route = createFileRoute("/api/health")({
   server: {
     handlers: {
       GET: async () => {
+        ensureSuperTokensBackend();
         ensureTelemetryScheduler();
         const snapshot = await getHealthSnapshot();