fix(mcp): stream guarded transport via undici.request so SSE response… #23307

Job	Run time
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME, ubuntu-lat...	1m 25s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP, linux-x64-8-core)	9m 1s
Detect Version	5s
Test and Build / Lint and Test	3m 28s
Test and Build / Build App	5m 5s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS, ubuntu-latest)	1m 23s
Build AMD64 (./docker/pii.Dockerfile, ghcr.io/simstudioai/pii, ECR_PII, ubuntu-latest)	40s
Migrate Dev DB	0s
Build ARM64 (GHCR Only)	-1s
Check Docs Changes	-1s
Deploy Trigger.dev (Dev)	-1s
Build Dev ECR	-1s
Migrate DB / Apply Database Migrations	40s
Promote Images	16s
Process Docs	0s
Create GHCR Manifests	0s
Create GitHub Release	0s
	21m 59s

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