Service-level probe

Scope: when the thing under test is a service method, not an HTTP route — exercise it against the real database without mocks. Boots a Nest application context: no HTTP listener, no guards.

Source-checked against optolink-backend @ 29f8589, 2026-10-06 (tsconfig.json sets outDir: ./dist with no rootDir, so the build nests under dist/src/… — confirmed against the checked-in build layout; EntitlementsService lives at src/entitlements/entitlements.service.ts). The probe pattern itself is recorded 2026-08-16; re-verify live on next use.

cd optolink-backend && pnpm build      # needs dist/
# NOTE: build output is nested — import from ./dist/src/app.module, NOT
# ./dist/app.module (bit us in P7-003; the example below uses process.cwd()
# because relative ./ requires don't resolve from ts-node -e).
npx ts-node -e '
  const { NestFactory } = require("@nestjs/core");
  const { AppModule } = require(process.cwd() + "/dist/src/app.module");
  const { EntitlementsService } = require(process.cwd() + "/dist/src/entitlements/entitlements.service");
  (async () => {
    const app = await NestFactory.createApplicationContext(AppModule, { logger:["error"] });
    const ent = app.get(EntitlementsService);
    try { console.log("OK", JSON.stringify(await ent.checkQuota(process.argv[1], "links"))); }
    catch (e) { console.log("THREW status="+e.getStatus(), JSON.stringify(e.getResponse())); }
    await app.close();
  })();' "<org-uuid>"

Swap the service/module imports for whatever's under test (e.g. SubscriptionService, or PrismaService directly for raw seeding).