Function formatDuration

formatDuration(seconds: number): string
Format a duration in seconds to a human-readable string.

Displays the duration in days, hours, minutes, and seconds as appropriate.
Parameters
- seconds: number
  Duration in seconds
Returns string
Formatted duration string (e.g., "02d 05h 30m 15s")
Example
```
formatDuration(3665);   // "01h 01m 05s"
formatDuration(90061);  // "01d 01h 01m 01s"
formatDuration(45);     // "45s"
```
- Defined in utils/utils.ts:255