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/ibm-engineering-systems-design-rhapsody.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path class="cls-2" d="m4,10h4c1.1046,0,2-.8954,2-2v-4c0-1.1046-.8954-2-2-2h-4c-1.1046,0-2,.8954-2,2v4c0,1.1046.8954,2,2,2Zm0-6h4v4h-4v-4Z"/> <path class="cls-2" d="m28,22h-4c-1.1046,0-2,.8954-2,2v4c0,1.1046.8954,2,2,2h4c1.1046,0,2-.8954,2-2v-4c0-1.1046-.8954-2-2-2Zm0,6h-4v-4h4v4Z"/> <path class="cls-2" d="m21.414,12.586l-1.414,1.414,6,6,6-6-1.414-1.414-3.586,3.586V7c0-1.1046-.8954-2-2-2h-13v2h13v9.172l-3.586-3.586Z"/> <path class="cls-2" d="m7,15.828l3.586,3.586,1.414-1.414-6-6L0,18l1.414,1.414,3.586-3.586v9.172c0,1.1046.8954,2,2,2h13v-2H7v-9.172Z"/> </svg>