refactor: replace ignored numeric literals with constants

src/modules/auth/application/auth.service.ts

@@ -11,6 +11,8 @@ import { Session, User } from '../../../../generated/prisma/client';
 import { PrismaService } from '../../../prisma/prisma.service';
 import { AuthUser, RefreshPayload } from './auth.types';
 
+const EXPECTED_ROTATED_SESSIONS = 1;
+
 const PASSWORD_HASH_ROUNDS = 12;
 const REFRESH_TTL_MS = 604_800_000;
 
@@ -180,7 +182,7 @@ export class AuthService {
         where: { id: session.id, refreshTokenHash: expectedRefreshTokenHash },
         data,
       });
-      if (updated.count !== 1) {
+      if (updated.count !== EXPECTED_ROTATED_SESSIONS) {
         throw new UnauthorizedException({ code: 'UNAUTHORIZED' });
       }
     } else {

src/modules/auth/presentation/auth.dto.ts

@@ -7,6 +7,9 @@ import {
   ValidatorConstraint,
 } from 'class-validator';
 
+const EMAIL_PART_COUNT = 2;
+const FIRST_CHARACTER_INDEX = 0;
+
 const MAX_EMAIL_LENGTH = 254;
 const ASCII_SPACE = 32;
 const ASCII_DELETE = 127;
@@ -19,14 +22,14 @@ class EmailConstraint {
     return (
       typeof value === 'string' &&
       value.length <= MAX_EMAIL_LENGTH &&
-      value.split('@').length === 2 &&
+      value.split('@').length === EMAIL_PART_COUNT &&
       !value
         .split('')
         .some(
           (character) =>
             /\s/.test(character) ||
-            character.charCodeAt(0) < ASCII_SPACE ||
-            character.charCodeAt(0) === ASCII_DELETE,
+            character.charCodeAt(FIRST_CHARACTER_INDEX) < ASCII_SPACE ||
+            character.charCodeAt(FIRST_CHARACTER_INDEX) === ASCII_DELETE,
         ) &&
         value.split('@').every(Boolean)
     );