refactor: rename Batch to Partition and update related types and channels for consistency

internal/app/custom_errors/extractor.error.go

@@ -10,7 +10,7 @@ import (
 )
 
 type ExtractorError struct {
-	Batch     models.Batch
+	Batch     models.Partition
 	LastId    int64
 	HasLastId bool
 	Msg       string
@@ -24,7 +24,7 @@ func ExtractorErrorHandler(
 	ctx context.Context,
 	maxRetryAttempts int,
 	chErrorsIn <-chan ExtractorError,
-	chBatchesOut chan<- models.Batch,
+	chBatchesOut chan<- models.Partition,
 	chJobErrorsOut chan<- JobError,
 	wgActiveBatches *sync.WaitGroup,
 ) {

internal/app/custom_errors/loader.error.go

@@ -9,7 +9,7 @@ import (
 )
 
 type LoaderError struct {
-	models.Chunk
+	models.Batch
 	Msg string
 }
 
@@ -21,7 +21,7 @@ func LoaderErrorHandler(
 	ctx context.Context,
 	maxRetryAttempts int,
 	chErrorsIn <-chan LoaderError,
-	chChunksOut chan<- models.Chunk,
+	chChunksOut chan<- models.Batch,
 	chJobErrorsOut chan<- JobError,
 	wgActiveChunks *sync.WaitGroup,
 ) {
@@ -59,7 +59,7 @@ func LoaderErrorHandler(
 			err.RetryCounter++
 
 			select {
-			case chChunksOut <- err.Chunk:
+			case chChunksOut <- err.Batch:
 			case <-ctx.Done():
 				return
 			}