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1---
2globs: "buero-backend-api/**/*.ts,*.ts,*.tsx,*.js,*.jsx"
3description: "Стиль коду та конвенції — buero.de"
4---
5 
6# Стиль коду — buero.de
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8## Загальні правила
9 
10- **Мова коментарів та повідомлень помилок API:** **English**.
11- **TypeScript:** strict typing; avoid `any` where possible.
12- **Naming:** camelCase for variables/methods; PascalCase for classes, interfaces, DTOs; UPPER_SNAKE for constants when needed.
13 
14## Backend (NestJS)
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16- **class-validator** and **class-transformer** for DTOs; **ValidationPipe** globally.
17- All public DTOs must have Swagger docs (**@ApiProperty**, **@ApiPropertyOptional**).
18- Services — **@Injectable()**, inject via constructor.
19- Errors — **HttpException** (or exception filter) with clear message and correct HTTP status; messages in English.
20- Do not hardcode secrets; use **ConfigService** (@nestjs/config) and env vars.
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22## Frontend
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24- Frontend conventions and UI stack are defined by the frontend developer. Backend owner is responsible for **backend implementation** and **auth contract** (cookie names, refresh flow, CORS) so the frontend can integrate auth correctly; see docs/auth-spec.md, docs/auth-config.md.
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26## Formatting
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28- ESLint + Prettier (docs/tools.md); same config across the repo.
29- Quotes, indentation, line length — follow project config.
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