Fix indentation in receipt_processor.py

- Remove extra blank line before ReceiptProcessor class definition
- Ensure proper indentation for Railway deployment
- Fix potential IndentationError on line 90

This addresses the Railway deployment error:
'IndentationError: expected an indented block after class definition on line 90'

Author: root

receipt-scanner-app/receipt-scanner-backend/app/receipt_processor.py

@@ -84,7 +84,6 @@ def setup_tesseract():
 # Tesseractのセットアップ
 tesseract_available = setup_tesseract()
 
-
 class ReceiptProcessor:
     """統合されたレシート処理クラス - AI-OCRの協調処理"""