The storage projection bar was blindly using disk[0], which on systems
with multiple drives (like the Minisforum AI X1 Pro) could be an empty
or uninitialized drive (e.g., sda showing N/A / N/A).
Now the disk selection:
1. Filters out disks with totalSize === 0 (invalid/empty drives)
2. Prefers disk containing root (/) or /storage mount point
3. Falls back to largest valid disk if no root mount found
This fixes the NaN% and 0 Bytes display on multi-drive systems.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>