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/passenger-plus.svg

@@ -0,0 +1 @@
+<svg id="Layer_1" data-name="Layer 1" width="32" height="32" viewBox="0 0 32 32"> <path d="M10.5,9A3.5,3.5,0,1,1,14,5.5,3.5042,3.5042,0,0,1,10.5,9Zm0-5A1.5,1.5,0,1,0,12,5.5,1.5017,1.5017,0,0,0,10.5,4Z" transform="translate(0 0)"/> <path d="M22.4739,31.313,19.34,24H12.2385a4.0072,4.0072,0,0,1-3.8662-2.9707l-1.6338-6.126a3.8988,3.8988,0,0,1,7.5342-2.0092L15.1008,16H21v2H13.5637l-1.2226-4.5908a1.9,1.9,0,0,0-3.6709.979l1.6338,6.1255A2.0051,2.0051,0,0,0,12.2385,22h8.42l3.6543,8.5254Z" transform="translate(0 0)"/> <polygon points="30 6 26 6 26 2 24 2 24 6 20 6 20 8 24 8 24 12 26 12 26 8 30 8 30 6"/> <path d="M18,28H7.7676A2.0025,2.0025,0,0,1,5.835,26.5151L2.033,12.2576l1.9326-.5152L7.7676,26H18Z" transform="translate(0 0)"/> </svg>