fix: implement password change for shop customers

The password change form on the profile page (``Mes coordonnées``)
was scaffolded but never wired to any backend logic. The fields
``current-password``, ``new-password`` and ``new-password_confirmation``
were silently ignored by ``Customers::storeFull()``.

- Add ``handlePasswordChange()`` in ``CustomerController`` that
  validates current password, confirmation match, and 8-char minimum
  before hashing and saving.
- Remove ``required`` attribute from password fields so the form can
  submit for profile-only updates without filling password fields.
- Strip password fields from request data before passing to
  ``storeFull()`` to avoid Eloquent mass-assignment noise.

app/Http/Controllers/Shop/CustomerController.php

@@ -8,6 +8,7 @@ use App\Repositories\Shop\CustomerAddresses;
 use App\Repositories\Shop\Customers;
 use App\Repositories\Shop\Offers;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Hash;
 use Illuminate\Support\Facades\Schema;
 use Illuminate\Support\Facades\Validator;
 
@@ -117,9 +118,52 @@ class CustomerController extends Controller
     public function store(Request $request)
     {
         $data = $request->all();
+
+        $passwordError = $this->handlePasswordChange($request);
+        if ($passwordError) {
+            return redirect()->route('Shop.Customers.edit')
+                ->with('growl', [$passwordError, 'danger']);
+        }
+
+        unset($data['current-password'], $data['new-password'], $data['new-password_confirmation']);
+
         $customer = Customers::storeFull($data);
 
-        return redirect()->route('Shop.Customers.edit');
+        $growl = $request->filled('new-password')
+            ? [__('Profil et mot de passe mis à jour.'), 'success']
+            : [__('Profil mis à jour.'), 'success'];
+
+        return redirect()->route('Shop.Customers.edit')->with('growl', $growl);
+    }
+
+    protected function handlePasswordChange(Request $request)
+    {
+        if (! $request->filled('new-password')) {
+            return null;
+        }
+
+        $customer = Customers::get(Customers::getId());
+
+        if (! $customer) {
+            return __('Impossible de modifier le mot de passe.');
+        }
+
+        if (! Hash::check($request->input('current-password'), $customer->password)) {
+            return __('Le mot de passe actuel est incorrect.');
+        }
+
+        if ($request->input('new-password') !== $request->input('new-password_confirmation')) {
+            return __('Les mots de passe ne correspondent pas.');
+        }
+
+        if (strlen($request->input('new-password')) < 8) {
+            return __('Le nouveau mot de passe doit contenir au moins 8 caractères.');
+        }
+
+        $customer->password = Hash::make($request->input('new-password'));
+        $customer->save();
+
+        return null;
     }
 
     public function storeAddress(Request $request)