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/chart-combo-stacked.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M27,28V16H19V28H15V12H7V28H4V2H2V28a2,2,0,0,0,2,2H30V28ZM13,14v6H9V14Zm12,4v6H21V18Z"/> <path d="M22.7856,14a1.9877,1.9877,0,0,1-1.1787-.3865L11.2041,5.987,8.2419,10,6.6374,8.8065l2.9812-4a1.9978,1.9978,0,0,1,2.749-.446l10.4214,7.64,3.6045-4.8613L28,8.3306l-3.6045,4.8611A2.0014,2.0014,0,0,1,22.7856,14Z"/> </svg>