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/chart-column-floating.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M28,22H20V4h8Zm-6-2h4V6H22Z"/> <path d="M16,24H8V10h8Zm-6-2h4V12H10Z"/> <path d="M30,30H4a2.0021,2.0021,0,0,1-2-2V2H4V28H30Z"/> </svg>