Add time with seconds to info dialog modified field

- Add formatDateTime function to show full timestamp
- Display modification time as "YYYY-MM-DD at HH:MM:SS"
- Keep formatDate for table display (date only)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

1 files changed, 14 insertions, 1 deletions

diff --git a/frontend/file-drive.tsx b/frontend/file-drive.tsx
index d59d7c9..7a59def 100644
--- a/frontend/file-drive.tsx
+++ b/frontend/file-drive.tsx
@@ -70,6 +70,19 @@ function formatDate(timestamp: number): string {
   return new Date(timestamp * 1000).toISOString().split('T')[0] // YYYY-MM-DD
 }
 
+// Convert UNIX timestamp to date and time string
+function formatDateTime(timestamp: number): string {
+  const date = new Date(timestamp * 1000)
+  const dateStr = date.toISOString().split('T')[0] // YYYY-MM-DD
+  const timeStr = date.toLocaleTimeString('en-US', { 
+    hour12: false, 
+    hour: '2-digit', 
+    minute: '2-digit',
+    second: '2-digit'
+  })
+  return `${dateStr} at ${timeStr}`
+}
+
 export default function FileDrive() {
   const [files, setFiles] = useState<DriveTreeNode[]>([])
   const [loading, setLoading] = useState(true)
@@ -569,7 +582,7 @@ export default function FileDrive() {
                 </div>
                 <div>
                   <Label className="text-sm font-medium text-muted-foreground">Modified</Label>
-                  <p className="text-sm">{formatDate(currentItem.lastmod)}</p>
+                  <p className="text-sm">{formatDateTime(currentItem.lastmod)}</p>
                 </div>
                 <div>
                   <Label className="text-sm font-medium text-muted-foreground">Modified By</Label>