Replaces stat card layout with functional dashboard:
- Prominent spool count with "Add Spool" button
- Paginated list of all spools sorted by last used
- Low stock alert badge (< 100g threshold)
- Color swatch, name, material, and remaining weight columns
- Clickable rows navigate to spool detail
- Secondary stats for filaments and vendors
Closes#12
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
tonym
0a741c9712