Browser extension guide
Use the popup as the source of truth for extension sign-in and saving.
Expected result
A working extension signs in from the popup and saves a `web_selection` clip you can see in Quontext.
Expected button flow
Run these checks in order.
- 1
Start sign-in from the popup, not from a disconnected browser tab.
- 2
Confirm `App URL` before you retry auth or Capture.
- 3
Use `Load Current Selection` or `Save Selection Capture` after sign-in is working.