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/tsunami.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M30,26H24A10.0349,10.0349,0,0,1,17.0732,8.7378,11.9629,11.9629,0,0,0,12.9937,8a6.9027,6.9027,0,0,0-6.0308,3.42C4.9966,14.4348,4,19.34,4,26H2c0-7.0542,1.106-12.3274,3.2871-15.6726A8.906,8.906,0,0,1,12.9937,6h.0068a14.762,14.762,0,0,1,6.4619,1.592,1,1,0,0,1,.0869,1.7222A8.0249,8.0249,0,0,0,24,24h6Z"/> </svg>