feat: unify language handling across the application

- Updated the language configuration to use a single source of truth from `DEFAULT_LANGUAGE` for the bot, API, and Mini App, eliminating auto-detection from user settings.
- Refactored the `get_lang` function to always return `DEFAULT_LANGUAGE`, ensuring consistent language usage throughout the application.
- Modified the handling of language in various components, including API responses and UI elements, to reflect the new language management approach.
- Enhanced documentation and comments to clarify the changes in language handling.
- Added unit tests to verify the new language handling behavior and ensure coverage for the updated functionality.
This commit is contained in:
2026-03-02 23:05:28 +03:00
parent 54446d7b0f
commit 67ba9826c7
21 changed files with 446 additions and 205 deletions

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@@ -19,7 +19,7 @@ All configuration is read from the environment (e.g. `.env` via python-dotenv).
| **EXTERNAL_CALENDAR_ICS_URL** | string (URL) | *(empty)* | URL of a public ICS calendar (e.g. holidays). If set, those days are highlighted on the duty grid; users can tap "i" on a cell to see the event summary. Empty = no external calendar. |
| **DUTY_DISPLAY_TZ** | string (timezone name) | `Europe/Moscow` | Timezone for the pinned duty message in groups. Example: `Europe/Moscow`, `UTC`. |
| **DUTY_PIN_NOTIFY** | `0`, `false`, or `no` to disable | `1` (enabled) | When the pinned duty message is updated on schedule, the bot sends a new message, unpins the old one and pins the new one. If enabled, pinning the new message sends a Telegram notification (“Bot pinned a message”). Set to `0`, `false`, or `no` to pin without notification. The first pin (e.g. when the bot is added to the group or on `/pin_duty`) is always silent. |
| **DEFAULT_LANGUAGE** | `en` or `ru` (normalized) | `en` | Default UI language when the user's Telegram language is unknown. Values starting with `ru` are normalized to `ru`, otherwise `en`. |
| **DEFAULT_LANGUAGE** | `en` or `ru` (normalized) | `en` | **Single source of language for the whole deployment:** bot messages, API error texts, and Mini App UI all use this value. No auto-detection from Telegram user, browser, or `Accept-Language`. Values starting with `ru` are normalized to `ru`; anything else becomes `en`. |
## Roles and access