Fix transaction deduplication

Address the issue where duplicate transactions are still being created after the previous fix.

src/components/BatchTransactionForm.tsx

@@ -107,16 +107,19 @@ const BatchTransactionForm: React.FC<BatchTransactionFormProps> = ({ onClose, on
     const lines = value.trim().split('\n');
     const pasteTransactionMap = new Map<string, ParsedTransaction>();
 
+    console.log('=== STEP 1: Processing pasted lines ===');
     // STEP 1: First combine all identical transactions within the pasted data
     lines.forEach((line, index) => {
       const parsed = parseTransactionLine(line);
       if (parsed) {
         const transactionKey = createTransactionKey(parsed);
+        console.log(`Line ${index + 1}: Key = ${transactionKey}`);
 
         // Check if this exact transaction already exists in our paste data
         if (pasteTransactionMap.has(transactionKey)) {
           // Merge with existing transaction in paste
           const existing = pasteTransactionMap.get(transactionKey)!;
+          console.log(`Merging duplicate: adding ${parsed.quantity} to existing ${existing.quantity}`);
           existing.quantity += parsed.quantity;
           existing.totalPrice += Math.abs(parsed.totalAmount);
         } else {
@@ -133,25 +136,31 @@ const BatchTransactionForm: React.FC<BatchTransactionFormProps> = ({ onClose, on
             wallet: parsed.wallet
           };
           pasteTransactionMap.set(transactionKey, newTransaction);
+          console.log(`Added new transaction: ${parsed.itemName} x${parsed.quantity}`);
         }
       }
     });
 
+    console.log('=== STEP 2: Checking against existing transactions ===');
     // STEP 2: Now check combined transactions against existing job transactions
     const existingTransactionKeys = new Set<string>();
     eligibleJobs.forEach(job => {
       job.income.forEach(tx => {
         const key = createTransactionKeyFromRecord(tx);
         existingTransactionKeys.add(key);
+        console.log(`Existing transaction key: ${key}`);
       });
     });
 
     let duplicates = 0;
+    console.log('=== STEP 3: Marking duplicates and assigning jobs ===');
     // Update each combined transaction with duplicate status and job assignment
     pasteTransactionMap.forEach((transaction, key) => {
       const isDuplicate = existingTransactionKeys.has(key);
       transaction.isDuplicate = isDuplicate;
       
+      console.log(`Transaction ${transaction.itemName}: isDuplicate = ${isDuplicate}`);
+      
       if (isDuplicate) {
         duplicates++;
         transaction.assignedJobId = undefined;