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/event-warning.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="m27.3803,28h-6.7625l3.3822-6.7642,3.3803,6.7642Zm-3.3803-10c-.3915,0-.7305.2251-.8947.5527l-5,10c-.0674.1348-.1053.2866-.1053.4473,0,.5522.4477,1,1,1h10c.5523,0,1-.4478,1-1,0-.1382-.028-.2695-.0786-.3892l-5.0269-10.0581c-.1641-.3276-.5031-.5527-.8946-.5527h0Z"/> <path d="m16,23c-.8284,0-1.5.6716-1.5,1.5s.6716,1.5,1.5,1.5,1.5-.6716,1.5-1.5-.6716-1.5-1.5-1.5h0Z"/> <rect x="15" y="12" width="2" height="9"/> <path d="m15,30H3c-.3494,0-.6736-.1824-.8547-.4811-.1814-.2986-.1936-.6703-.0325-.9802L15.1128,3.5387c.1721-.3311.5297-.5387.8872-.5387s.7151.2076.8872.5387l6,11.5385-1.7744.9226-5.1128-9.8322L4.6472,28h10.3528v2Z"/> </svg>