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/error-outline.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <rect x="14.9004" y="7.2004" width="2.1996" height="17.5994" transform="translate(-6.6275 16.0001) rotate(-45)"/> <path d="M16,2A13.9138,13.9138,0,0,0,2,16,13.9138,13.9138,0,0,0,16,30,13.9138,13.9138,0,0,0,30,16,13.9138,13.9138,0,0,0,16,2Zm0,26A12,12,0,1,1,28,16,12.0353,12.0353,0,0,1,16,28Z"/> </svg>