Use when translating or localizing UI strings, marketing copy, documentation, or any source text into Arabic (ar / MSA / ar-SA / ar-EG / ar-AE / ar-LB / ar-MA). Enforces RTL with LTR-embedded tech identifiers, ICU zero/one/two/few/many/other plurals, dual number, masc/fem agreement (non-human plural = feminine singular), sun/moon letters, idafa construct, Arabic punctuation ؟ ، ؛, Islamic sensitivity, and formal أنت register by default.
