feat: Add multi-threaded file transfers and enhanced logging support

- Implement concurrent file transfer processing with configurable concurrency
- Add new `max_concurrent_transfers` column to transfer configurations
- Enhance scheduler to support multi-threaded file transfers
- Introduce advanced logging system with rotation and configurable log levels
- Update Docker Compose and documentation with new logging configuration options
- Modify directory structure to separate data, backups, and logs
- Add environment variables for comprehensive logging control
- Improve error handling and logging in file transfer processes

.gitignore

@@ -68,11 +68,14 @@ tmp/
 # Ignore the configs directory
 configs/
 
+# Ignore the backups directory
+backups/
+
 # Ignore Dirs
 /source/
 /destination/
-
 /archive/
 
+
 # Ignore binaries
 gomft