German grammar layer for the Prosaic NLG engine.
Covers: gender-aware articles (all four cases × three genders × singular/plural), regular and common-irregular noun pluralization, regular weak verb conjugation (present/preterite/future) plus ~10 strong irregulars, past and present participles, German cardinal number spelling (0–999,999), and gendered nominative pronouns/demonstratives.
Deliberately out of scope: attributive adjective declension, Konjunktiv, Perfekt compound tenses, full strong-verb tables. See the plan doc for rationale.