ep: Make --provider optional, skip prediction when results exist (#47225)

When --provider is not provided, `ep` will now use whatever provider is
recorded in the data.

Release Notes:

- N/A
9fce07599aOleksiy Syvokon committed on 1/20/2026, 3:26:37 PM· committed by GitHubparent8e48a16
3 files changedLine totals unavailable