refactor: standardize design

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

src/utils/fileHelpers.ts

@@ -1,10 +1,10 @@
-import { FileEntityObject } from '@FilesManager/models/entity'
+import { EntityObject } from '@DocumentsManager/models/entity'
 
 /**
  * Get the appropriate icon for a file based on its MIME type
  */
-export function getFileIcon(entity: FileEntityObject): string {
-  const mime = entity.mime || ''
+export function getFileIcon(entity: EntityObject): string {
+  const mime = entity.properties.mime || ''
   if (!mime) return 'mdi-file'
   if (mime.startsWith('image/')) return 'mdi-file-image'
   if (mime.startsWith('video/')) return 'mdi-file-video'
@@ -22,19 +22,22 @@ export function getFileIcon(entity: FileEntityObject): string {
  * Format file size in human readable format
  */
 export function formatSize(bytes: number): string {
-  if (bytes === 0) return '0 B'
+  const safeBytes = Number.isFinite(bytes) ? bytes : 0
+  if (safeBytes === 0) return '0 B'
   const k = 1024
   const sizes = ['B', 'KB', 'MB', 'GB', 'TB']
-  const i = Math.floor(Math.log(bytes) / Math.log(k))
-  return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i]
+  const i = Math.floor(Math.log(safeBytes) / Math.log(k))
+  return parseFloat((safeBytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i]
 }
 
 /**
  * Format date string to localized format
  */
-export function formatDate(dateStr: string): string {
-  if (!dateStr) return '—'
-  return new Date(dateStr).toLocaleDateString('en-US', {
+export function formatDate(value: Date | string | null | undefined): string {
+  if (!value) return '—'
+  const date = value instanceof Date ? value : new Date(value)
+  if (Number.isNaN(date.getTime())) return '—'
+  return date.toLocaleDateString('en-US', {
     year: 'numeric',
     month: 'short',
     day: 'numeric',