/**
 * Minimal line-based unified diff for ship diffs (06-apps §8).
 *
 * `ShipDiffPin.diff` is "the net diff against the host baseline" a human
 * approver reviews. Component sources are small (caps in 01-core §9), so a
 * plain O(n·m) LCS is comfortably fast and keeps this dependency-free.
 */
/**
 * Produce a standard unified diff (`--- a/…`, `+++ b/…`, `@@` hunks) between
 * two sources. Identical inputs produce an empty string.
 */
export declare const unifiedDiff: (label: string, before: string, after: string) => string;
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