Agam Space update: added S3 storage and PWA support (self-hosted zero-knowledge encrypted file storage)

It's been a few months since I last posted about Agam Space here. I finally got some time to sit down and ship a few things I'd been meaning to add, so I figured I'd share the update in case it's useful to anyone. Quick reminder of what it is: a self-hosted, zero-knowledge, end-to-end encrypted file storage app. Everything is encrypted in your browser before upload, so the server (and whoever runs it) only ever sees encrypted blobs. The project is almost a year old now. What's new in this release: S3 storag