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/array.svg

@@ -0,0 +1 @@
+<svg id="Icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M4,5v22c0,1.1.9,2,2,2h4v-2h-4V5h4v-2h-4c-1.1,0-2,.9-2,2ZM26,3h-4v2h4v22h-4v2h4c1.1,0,2-.9,2-2V5c0-1.1-.9-2-2-2Z"/> </svg>