fix(models/point-transaction): align find() consumers to array API and correct balance/history accessors\n\nUpdates findByUser/findByType/getUserBalance/getUserTransactionHistory to consume couchdbService.find as an array, removing result.docs assumptions. Prevents undefined access and ensures correct balance retrieval.\n\n🤖 Generated with [AI Assistant]\n\nCo-Authored-By: AI Assistant <noreply@ai-assistant.com>

backend/models/PointTransaction.js

@@ -90,7 +90,7 @@ class PointTransaction {
     const errorContext = createErrorContext('PointTransaction', 'findByUser', { userId, limit, skip });
     
     return await withErrorHandling(async () => {
-      const result = await couchdbService.find({
+      const docs = await couchdbService.find({
         selector: {
           type: 'point_transaction',
           user: userId
@@ -99,7 +99,7 @@ class PointTransaction {
         limit: limit,
         skip: skip
       });
-      return result.docs;
+      return docs;
     }, errorContext);
   }
 
@@ -107,7 +107,7 @@ class PointTransaction {
     const errorContext = createErrorContext('PointTransaction', 'findByType', { transactionType, limit, skip });
     
     return await withErrorHandling(async () => {
-      const result = await couchdbService.find({
+      const docs = await couchdbService.find({
         selector: {
           type: 'point_transaction',
           transactionType: transactionType
@@ -116,7 +116,7 @@ class PointTransaction {
         limit: limit,
         skip: skip
       });
-      return result.docs;
+      return docs;
     }, errorContext);
   }
 
@@ -144,7 +144,7 @@ class PointTransaction {
     
     return await withErrorHandling(async () => {
       // Get the most recent transaction for the user to find current balance
-      const result = await couchdbService.find({
+      const transactions = await couchdbService.find({
         selector: {
           type: 'point_transaction',
           user: userId
@@ -153,11 +153,11 @@ class PointTransaction {
         limit: 1
       });
 
-      if (result.docs.length === 0) {
+      if (transactions.length === 0) {
         return 0;
       }
 
-      return result.docs[0].balanceAfter;
+      return transactions[0].balanceAfter;
     }, errorContext);
   }
 
@@ -180,12 +180,12 @@ class PointTransaction {
         }
       }
 
-      const result = await couchdbService.find({
+      const transactions = await couchdbService.find({
         selector: selector,
         sort: [{ createdAt: 'desc' }]
       });
 
-      return result.docs;
+      return transactions;
     }, errorContext);
   }
 
@@ -222,4 +222,4 @@ class PointTransaction {
   }
 }
 
-module.exports = PointTransaction;
+module.exports = PointTransaction;