Russian style guide (`ru`)

Base bundle: direct, friendly ты; avoid bureaucratic calques.
Formal bundle: consistently polite вы, capitalized only where natural in direct address.
Prefer проект, заказ, коммерческое предложение, счёт, приёмка, дефект, монтажник and доска планирования.
Use Russian quotation marks «…», Cyrillic text and locale formatting (ru-RU).
Plurals must contain one, few, many, and other; test 0, 1, 2, 5, 21 and a decimal.
Keep concise UI labels; explain irreversible outcomes in dialogs and errors.

Russian style guide (ru)