Align runtime profiles with plugin-owned records

platform/service/log_body_store.go

@@ -3,7 +3,9 @@ package service
 import (
 	"bufio"
 	"encoding/json"
+	"errors"
 	"fmt"
+	"io"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -231,16 +233,24 @@ func readLogSegment(path string) (domain.LogBatchRecord, error) {
 	defer file.Close()
 
 	entries := []domain.LogEntry{}
-	scanner := bufio.NewScanner(file)
-	for scanner.Scan() {
+	reader := bufio.NewReader(file)
+	for {
+		line, readErr := reader.ReadBytes('\n')
+		if len(line) == 0 && errors.Is(readErr, io.EOF) {
+			break
+		}
 		var entry domain.LogEntry
-		if err := json.Unmarshal(scanner.Bytes(), &entry); err != nil {
+		if err := json.Unmarshal(line, &entry); err != nil {
 			return domain.LogBatchRecord{}, fmt.Errorf("decode log segment %s: %w", filepath.Base(path), err)
 		}
 		entries = append(entries, domain.CopyLogEntry(entry))
-	}
-	if err := scanner.Err(); err != nil {
-		return domain.LogBatchRecord{}, fmt.Errorf("read log segment %s: %w", filepath.Base(path), err)
+		if readErr == nil {
+			continue
+		}
+		if errors.Is(readErr, io.EOF) {
+			break
+		}
+		return domain.LogBatchRecord{}, fmt.Errorf("read log segment %s: %w", filepath.Base(path), readErr)
 	}
 	sort.SliceStable(entries, func(i, j int) bool { return entries[i].Seq < entries[j].Seq })
 	if len(entries) == 0 {