✨ v0.19.1

This release simplifies how we handle baseline downloads. We consolidated everything to use the new SDK endpoint, which means baselines downloaded from the cloud will always have the exact same filenames as ones generated locally during TDD.

What changed:

• Unified baseline downloads through a single SDK endpoint
• Removed the old dual-path system (API token vs OAuth) that was causing filename mismatches
• The API now tells us what to name files instead of us guessing

Why this matters:
Before this change, downloading baselines from the cloud and running tests locally could create different filenames for the same screenshot. Not anymore! Now there's one source of truth: the server generates the filename, and we use it.