zeta: Add stats about context lines from patch that were retrieved during context retrieval (#43053)

A.K.A: Eval: Expect lines necessary to uniquely target every change in
"Expected Patch" to be included as context

Release Notes:

- N/A
40dd4e2270Piotr Osiewicz committed on 11/19/2025, 11:25:53 AM· committed by GitHubparent9feb260
1 file changedLine totals unavailable