-ção nouns → use 's' not 'ç'

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Source: Tetun lint rule catalog. Built from Peace Corps Tetun (CWvK 2015), DIT Justice Sector textbook, WvK & Ximenes Ortografia Tetun Dili (2025), and INL Matadalan Ortográfiku ba Tetun-Prasa (2003, Decree 1/2004).