feat: srt sync and formatting

internal/format/srt/srt.go

@@ -122,6 +122,23 @@ func formatSRTTimestamp(ts model.Timestamp) string {
 		ts.Milliseconds)
 }
 
+// Format standardizes and formats an SRT file
+func Format(filePath string) error {
+	// Parse the file
+	entries, err := Parse(filePath)
+	if err != nil {
+		return fmt.Errorf("error parsing SRT file: %w", err)
+	}
+
+	// Standardize entry numbering and ensure consistent formatting
+	for i := range entries {
+		entries[i].Number = i + 1 // Ensure sequential numbering
+	}
+
+	// Write back the formatted content
+	return Generate(entries, filePath)
+}
+
 // ConvertToLyrics converts SRT entries to a Lyrics structure
 func ConvertToLyrics(entries []model.SRTEntry) model.Lyrics {
 	lyrics := model.Lyrics{