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/IP.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path class="cls-2" d="m19,23h-2v-14h6c1.103,0,2,.897,2,2v5c0,1.103-.897,2-2,2h-4v5Zm0-7h4v-5.0015h-4v5.0015Z"/> <polygon class="cls-2" points="7 11 10 11 10 21 7 21 7 23 15 23 15 21 12 21 12 11 15 11 15 9 7 9 7 11"/> </svg>