feat: admin creation modal and backend fixes for user updates (#96)

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/routes/user/dto/create_user.dto.ts

@@ -36,10 +36,10 @@ export class CreateUserDto {
   @MaxLength(100)
   nom: string;
 
-  @ApiProperty({ enum: GenreType, required: false, default: GenreType.AUTRE })
+  @ApiProperty({ enum: GenreType, required: false })
   @IsOptional()
   @IsEnum(GenreType)
-  genre?: GenreType = GenreType.AUTRE;
+  genre?: GenreType;
 
   @ApiProperty({ enum: RoleType })
   @IsEnum(RoleType)
@@ -86,7 +86,7 @@ export class CreateUserDto {
   @ApiProperty({ default: false })
   @IsOptional()
   @IsBoolean()
-  consentement_photo?: boolean = false;
+  consentement_photo?: boolean;
 
   @ApiProperty({ required: false })
   @IsOptional()
@@ -96,7 +96,7 @@ export class CreateUserDto {
   @ApiProperty({ default: false })
   @IsOptional()
   @IsBoolean()
-  changement_mdp_obligatoire?: boolean = false;
+  changement_mdp_obligatoire?: boolean;
 
   @ApiProperty({ example: true })
   @IsBoolean()