Refactor associations in models to include constraints: false, preventing automatic foreign key creation. Update sequelize.js to enhance foreign key management during model synchronization, ensuring associations are restored correctly after sync operations.

backend/models/associations.js

@@ -598,44 +598,52 @@ export default function setupAssociations() {
 
   Learning.belongsTo(LearnRecipient, {
     foreignKey: 'learningRecipientId',
-    as: 'recipient'
+    as: 'recipient',
+    constraints: false
   }
   );
 
   LearnRecipient.hasMany(Learning, {
     foreignKey: 'learningRecipientId',
-    as: 'learnings'
+    as: 'learnings',
+    constraints: false
   });
 
   Learning.belongsTo(FalukantUser, {
     foreignKey: 'associatedFalukantUserId',
-    as: 'learner'
+    as: 'learner',
+    constraints: false
   }
   );
 
   FalukantUser.hasMany(Learning, {
     foreignKey: 'associatedFalukantUserId',
-    as: 'learnings'
+    as: 'learnings',
+    constraints: false
   });
 
   Learning.belongsTo(ProductType, {
     foreignKey: 'productId',
-    as: 'productType'
+    as: 'productType',
+    constraints: false
   });
 
   ProductType.hasMany(Learning, {
     foreignKey: 'productId',
-    as: 'learnings'
+    as: 'learnings',
+    constraints: false
   });
 
   Learning.belongsTo(FalukantCharacter, {
     foreignKey: 'associatedLearningCharacterId',
-    as: 'learningCharacter'
+    as: 'learningCharacter',
+    constraints: false
   });
 
   FalukantCharacter.hasMany(Learning, {
     foreignKey: 'associatedLearningCharacterId',
-    as: 'learningsCharacter'
+    as: 'learningsCharacter',
+    constraints: false
   });
 
   FalukantUser.hasMany(Credit, {