Add utility functions for formatting bytes and percentages

src/utils/format.ts

@@ -0,0 +1,36 @@
+/**
+ * Format bytes to human readable string
+ */
+export function formatBytes(bytes: number, decimals: number = 2): string {
+  if (bytes === undefined || bytes === null || isNaN(bytes) || bytes === 0) return '0 B';
+  
+  const k = 1024;
+  const dm = decimals;
+  const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
+  
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
+  
+  return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
+}
+
+/**
+ * Format percentage to string with % symbol
+ */
+export function formatPercentage(value: number): string {
+  if (value === undefined || value === null || isNaN(value)) return '0%';
+  return `${Math.round(value)}%`;
+}
+
+/**
+ * Convert bytes to megabytes
+ */
+export function bytesToMB(bytes: number): number {
+  return bytes / (1024 * 1024);
+}
+
+/**
+ * Convert megabytes to bytes
+ */
+export function mbToBytes(mb: number): number {
+  return mb * 1024 * 1024;
+}