[LOCKLITE-132] Refactor register and login API routes

[vbetsch]

No description provided.

[notion-workspace]

Refacto register et login pour l’adapter à l’architecture

[Copilot]

Pull Request Overview

This PR refactors the authentication system by separating business errors from HTTP errors, implementing proper use cases for sign-in and registration, and improving API documentation structure. The changes introduce a cleaner separation of concerns and better error handling for authentication flows.

• Separated business errors (with error codes) from generic HTTP errors
• Introduced use cases for authentication operations with proper dependency injection
• Created dedicated DTOs for authentication payloads and responses
• Improved Swagger documentation with consistent tagging

Reviewed Changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/modules/shared/errors/business-error-code.enum.ts	Added USER_ALREADY_EXISTS error code
src/modules/shared/dto/output/errors/business.error.dto.ts	New DTO for business errors with error codes
src/modules/shared/dto/output/errors/http.error.dto.ts	Removed business error code from generic HTTP errors
src/modules/shared/dto/output/responses/abstract/http.response.dto.ts	Updated to include BusinessErrorDto in response union
src/modules/shared/dto/output/data/sign-in.data.dto.ts	New DTO for sign-in response data
src/modules/shared/dto/output/data/register.data.dto.ts	New DTO for registration response data
src/modules/shared/dto/models/user.model.dto.ts	New user model DTO
src/modules/shared/dto/input/payloads/register.payload.dto.ts	New registration payload DTO
src/modules/api/usecases/auth/signin.usecase.ts	New use case for sign-in logic
src/modules/api/usecases/auth/register.usecase.ts	New use case for registration logic
src/modules/api/services/hash.service.ts	New service for password hashing operations
src/modules/api/repositories/users.repository.ts	New repository for user data operations
src/modules/api/errors/business/auth/user-already-exists.error.ts	New business error for duplicate user registration
src/modules/api/adapters/user.adapter.ts	New adapter for converting user entities to DTOs
src/lib/auth.ts	Refactored to use SignInUseCase instead of direct database calls
src/app/api/auth/register/route.ts	Completely refactored to use new architecture
Various route files	Updated Swagger documentation tags for consistency

Comments suppressed due to low confidence (1)

src/modules/api/services/hash.service.ts:29

• The parameter name 'hashedInput' is misleading. This parameter represents the plain text input to be compared against the hashed reference, not a hashed input. Consider renaming it to 'plainTextInput' or 'input' for clarity.

  public async compare(