Connexion par email ou nom d'utilisateur

Le champ de connexion accepte désormais les deux :
- Si la saisie contient un @, Auth::attempt() cherche par email
- Sinon, cherche par name
Champ renommé login dans le formulaire et la LoginRequest.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Http/Requests/Auth/LoginRequest.php

@@ -28,25 +28,23 @@ class LoginRequest extends FormRequest
     public function rules(): array
     {
         return [
-            'email' => ['required', 'string', 'email'],
+            'login'    => ['required', 'string'],
             'password' => ['required', 'string'],
         ];
     }
 
-    /**
-     * Attempt to authenticate the request's credentials.
-     *
-     * @throws ValidationException
-     */
     public function authenticate(): void
     {
         $this->ensureIsNotRateLimited();
 
-        if (! Auth::attempt($this->only('email', 'password'), $this->boolean('remember'))) {
+        $login = $this->string('login')->toString();
+        $field = filter_var($login, FILTER_VALIDATE_EMAIL) ? 'email' : 'name';
+
+        if (! Auth::attempt([$field => $login, 'password' => $this->string('password')->toString()], $this->boolean('remember'))) {
             RateLimiter::hit($this->throttleKey());
 
             throw ValidationException::withMessages([
-                'email' => trans('auth.failed'),
+                'login' => trans('auth.failed'),
             ]);
         }
 
@@ -55,18 +53,13 @@ class LoginRequest extends FormRequest
             RateLimiter::hit($this->throttleKey());
 
             throw ValidationException::withMessages([
-                'email' => 'Votre compte est désactivé. Contactez un administrateur.',
+                'login' => 'Votre compte est désactivé. Contactez un administrateur.',
             ]);
         }
 
         RateLimiter::clear($this->throttleKey());
     }
 
-    /**
-     * Ensure the login request is not rate limited.
-     *
-     * @throws ValidationException
-     */
     public function ensureIsNotRateLimited(): void
     {
         if (! RateLimiter::tooManyAttempts($this->throttleKey(), 5)) {
@@ -78,18 +71,15 @@ class LoginRequest extends FormRequest
         $seconds = RateLimiter::availableIn($this->throttleKey());
 
         throw ValidationException::withMessages([
-            'email' => trans('auth.throttle', [
+            'login' => trans('auth.throttle', [
                 'seconds' => $seconds,
                 'minutes' => ceil($seconds / 60),
             ]),
         ]);
     }
 
-    /**
-     * Get the rate limiting throttle key for the request.
-     */
     public function throttleKey(): string
     {
-        return Str::transliterate(Str::lower($this->string('email')).'|'.$this->ip());
+        return Str::transliterate(Str::lower($this->string('login')).'|'.$this->ip());
     }
 }