disable ssa_force_allocation_amount effect when it is null + deal with the…

disable ssa_force_allocation_amount effect when it is null + deal with the impossibility of clearing parameter value once it has been set by disabling ssa_force_allocation_amount when value is 0

src/Controller/AdherentAdminController.php

@@ -72,7 +72,7 @@ class AdherentAdminController extends CRUDController
 
         $forcedAmount = (int) $this->em->getRepository(GlobalParameter::class)
             ->val(GlobalParameter::SSA_FORCE_ALLOCATION_AMOUNT);
-        if(is_int($forcedAmount)) {
+        if($forcedAmount > 0) {
             $adherents = $qb->getQuery()->getResult();
             foreach ($adherents as $adherent)  {
                 $adherent->setAllocationAmount($forcedAmount);

src/Migrations/Version20250317150730.php

@@ -25,8 +25,8 @@ final class Version20250317150730 extends AbstractMigration
             VALUES (
                     UUID(),
                     'SSA_FORCE_ALLOCATION_AMOUNT',
-                    'Le montant d\'allocation est forcé égal au nombre entier saisi. Effacer pour désactiver.',
-                    '',
+                    'Le montant d\'allocation est forcé égal à l\'entier positif saisi. Saisir 0 pour désactiver.',
+                    '0',
                     '0'
             )
         ");

src/Utils/TAVCotisationUtils.php

@@ -190,7 +190,7 @@ class TAVCotisationUtils
 
         $forcedAmount = (int) $this->em->getRepository(GlobalParameter::class)
             ->val(GlobalParameter::SSA_FORCE_ALLOCATION_AMOUNT);
-        if(is_int($forcedAmount)) {
+        if($forcedAmount > 0) {
             $adherent->setAllocationAmount($forcedAmount);
             return;
         }
@@ -235,7 +235,7 @@ class TAVCotisationUtils
 
         $forcedAmount = (int) $this->em->getRepository(GlobalParameter::class)
             ->val(GlobalParameter::SSA_FORCE_ALLOCATION_AMOUNT);
-        if(is_int($forcedAmount)) {
+        if($forcedAmount > 0) {
             $adherent->setAllocationAmount($forcedAmount);
             return;
         }