Automated fixes: interface{} → any, range-over-int, t.Context(), wg.Go(), strings.SplitSeq, strings.Builder, slices.Contains, maps helpers, min/max builtins. Co-Authored-By: Virgil <virgil@lethean.io>
Multi-repo git operations: parallel status, sequential push/pull, error handling with stderr capture. 96.7% test coverage. All 40 tests passing. Co-Authored-By: Virgil <virgil@lethean.io>