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-table.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <title>data-table</title> <rect x="8" y="18" width="4" height="2"/> <rect x="14" y="18" width="4" height="2"/> <rect x="8" y="14" width="4" height="2"/> <rect x="14" y="22" width="4" height="2"/> <rect x="20" y="14" width="4" height="2"/> <rect x="20" y="22" width="4" height="2"/> <path d="M27,3H5A2.0025,2.0025,0,0,0,3,5V27a2.0025,2.0025,0,0,0,2,2H27a2.0025,2.0025,0,0,0,2-2V5A2.0025,2.0025,0,0,0,27,3Zm0,2,0,4H5V5ZM5,27V11H27l0,16Z"/> </svg>