feat: add exponential backoff retry strategy

Introduce a retry policy with exponential backoff and jitter for extractor and loader errors, with configurable max attempts and delay caps.

internal/app/custom_errors/job.error.go

@@ -37,11 +37,11 @@ func JobErrorHandler(ctx context.Context, chErrorsIn <-chan JobError) error {
 			}
 
 			if err.ShouldCancelJob {
-				log.Error(err.Msg, " - ", err.Prev)
+				log.Errorf("(Fatal job error) - %v - %v", err.Msg, err.Prev)
 				return &err
 			}
 
-			log.Error(err.Msg, " - ", err.Prev)
+			log.Errorf("%v - %v", err.Msg, err.Prev)
 		}
 	}
 }