- Removed redundant `process_latest_snapshot()` function.
- Directly process snapshots from MQTT messages upon receiving.
- Added improved logging to help with debugging snapshot processing issues.
- Added `get_latest_snapshot()` function to subscribe to the MQTT topic for the latest snapshot image.
- Updated `process_latest_snapshot()` to utilize the `get_latest_snapshot()` function.
- Improved the logging to provide better information about snapshot subscription status.