wiki: add Carbon Design System icons (2673) + pictograms (1000)

- 2673 SVG icons from @carbon/icons v11.82.0 (~2.5 MB)
- 1000 SVG pictograms from Carbon Design System (~2.0 MB)
- Updated 00-overview.md with asset structure and category listing

All icons: 32x32, fill: currentColor, optimized SVG
All pictograms: 24x24, fill: currentColor, SVG

assets/icons/carbon/drone-delivery.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M20,30H12V22h8Zm-6-2h4V24H14Z" transform="translate(0 0)"/> <polygon points="32 11 22 11 22 13 26 13 26 16 6 16 6 13 10 13 10 11 0 11 0 13 4 13 4 18 9.132 18 6 22.697 6 27 8 27 8 23.303 11.535 18 20.465 18 24 23.303 24 27 26 27 26 22.697 22.868 18 28 18 28 13 32 13 32 11"/> <path d="M16,6a5.9817,5.9817,0,0,0-4.2407,1.7593l1.4136,1.4136a3.9936,3.9936,0,0,1,5.6542,0l1.4136-1.4136A5.9814,5.9814,0,0,0,16,6Z" transform="translate(0 0)"/> <path d="M8.9324,4.9321l1.4133,1.4136a7.9877,7.9877,0,0,1,11.3086,0l1.4136-1.4136a9.9844,9.9844,0,0,0-14.1355,0Z" transform="translate(0 0)"/> </svg>