Bluesky PoC v3

Three tests, run in order. Nothing is saved to this device. No post is created.

1Login

Credentials are used for this session only and are never written to storage.

2Fetch MJ image (CORS test)

Fetched image preview

3Upload blob (optional)

Sends the fetched image bytes to Bluesky's blob store. No post is created; Bluesky discards unreferenced blobs automatically.