fix(uploads): set Content-Type once on presigned PUTs; document x-goo… #24461

Job	Run time
Detect Version	4s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP, linux-x64-8-core, b...	9m 42s
Detect Desktop Changes	12s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME, ubuntu-lat...	38s
Test and Build / Build App	3m 16s
Build AMD64 (./docker/pii.Dockerfile, ghcr.io/simstudioai/pii, ECR_PII, ubuntu-latest, blacksmith...	26s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS, ubuntu-lates...	1m 38s
Test and Build / Lint and Test	3m 1s
Migrate Dev DB	0s
Check Docs Changes	0s
Deploy Trigger.dev (Dev)	0s
Build ARM64 (GHCR Only)	-6s
Build Dev ECR	0s
Check Desktop Signing Secrets	0s
Create Desktop Prerelease	0s
Desktop Prerelease Build	0s
Publish Desktop Prerelease	0s
Prune Desktop Prereleases	0s
Migrate DB / Apply Database Migrations	36s
Promote Images	27s
Process Docs	0s
Create GHCR Manifests	0s
Create GitHub Release	0s
Desktop Release	0s
	19m 54s

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