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/data-error.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <circle cx="11" cy="8" r="1"/> <circle cx="11" cy="16" r="1"/> <circle cx="11" cy="24" r="1"/> <path d="M24,3H8A2,2,0,0,0,6,5V27a2,2,0,0,0,2,2H18V27H8V21H26V5A2,2,0,0,0,24,3Zm0,16H8V13H24Zm0-8H8V5H24Z"/> <polygon points="29 24.415 27.586 23 25 25.587 22.414 23 21 24.415 23.586 27 21 29.586 22.414 31 25 28.414 27.586 31 29 29.586 26.414 27 29 24.415"/> </svg>