Add manual reference price matching and marking

- Implemented manual reference prices for specific energy drink products based on size patterns in descriptions.
- Overrode API-provided reference prices with manual prices when a match is found.
- Added visual indicators (🛠️) to Telegram messages to denote manually set reference prices.
- Enhanced blacklist filtering to be case-insensitive for more effective exclusion of unwanted offers.
- Improved logging to track whether reference prices are sourced manually or from the API.
- Fixed indentation errors to ensure proper script execution."