feat(frontend): checklist de complexite du mot de passe sur reset-password

Remplace l'indice statique sous le champ nouveau mot de passe par une
checklist qui coche chaque regle (longueur, majuscule, minuscule,
chiffre, caractere special) au fur et a mesure de la saisie. Les regles
individuelles (PASSWORD_REQUIREMENTS) sont exposees depuis le meme
validateur que PASSWORD_PATTERN pour rester la seule source de verite.

apps/frontend/src/app/features/auth/reset-password/reset-password.html

@@ -12,7 +12,7 @@
         formControlName="new_password"
         autocomplete="new-password"
       />
-      <span class="auth-hint">{{ passwordHint }}</span>
+      <app-password-requirements [password]="password()" />
 
       @if (errorMessage()) {
         <p class="auth-error">{{ errorMessage() }}</p>

apps/frontend/src/app/features/auth/reset-password/reset-password.ts

@@ -1,15 +1,17 @@
 import { Component, OnInit, inject, signal } from '@angular/core';
+import { toSignal } from '@angular/core/rxjs-interop';
 import { ReactiveFormsModule, FormBuilder } from '@angular/forms';
 import { ActivatedRoute, Router, RouterLink } from '@angular/router';
 import { HttpErrorResponse } from '@angular/common/http';
 import { AuthService } from '../../../core/services/auth.service';
 import { passwordValidators, PASSWORD_HINT } from '../../../shared/validators/password.validator';
+import { PasswordRequirementsChecklist } from '../../../shared/components/password-requirements/password-requirements';
 import { MOTIF_LIEN_RESET_INVALIDE } from '../../../shared/models/auth-redirect-reason';
 
 @Component({
   selector: 'app-reset-password',
   standalone: true,
-  imports: [ReactiveFormsModule, RouterLink],
+  imports: [ReactiveFormsModule, RouterLink, PasswordRequirementsChecklist],
   templateUrl: './reset-password.html',
   styleUrl: './reset-password.scss',
 })
@@ -30,6 +32,8 @@ export class ResetPassword implements OnInit {
     new_password: ['', passwordValidators],
   });
 
+  password = toSignal(this.form.controls.new_password.valueChanges, { initialValue: '' });
+
   ngOnInit(): void {
     if (!this.hasToken) {
       this.redirigeVersLoginLienInvalide();