- Add enabled flag to hide/show each button section in main menu
- Add per-locale custom labels (ru, en, ua, zh, fa) for button text
- Deep-copy nested labels dict in cache to prevent reference leaks
- Validate label entries from DB (type + locale key checks)
- Use selective merge in PATCH handler instead of blind .update()
Allow admins to set buttons to Telegram's default style with no color
override. Refactors style resolution from or-chain to explicit if/elif/else
so that 'default' does not fall through to global config or hardcoded defaults.
Add cabinet admin API for configuring button colors (primary/success/danger)
and custom emoji IDs per menu section (home, subscription, balance, referral,
support, info, admin). Styles are stored as JSON in system_settings and cached
in-process for fast resolution.
Style resolution chain: explicit param > per-section DB > global config > defaults.
