const PINNED_CONTEXT_LINES: u32 = 2_000;Expand description
Unified-diff context radius the per-file fetch pins at open: large enough to cover realistic inter-hunk gaps (so expanding reveals hidden lines from the cached snapshot without a live re-fetch), but bounded so a big file with a small change doesn’t emit its whole content and trip the oversize cap. A gap wider than this reveals up to the cap.