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/update-now.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <polygon points="27 25.586 25 23.586 25 21 23 21 23 24.414 25.586 27 27 25.586"/> <path d="M24,31a7,7,0,1,1,7-7A7.0078,7.0078,0,0,1,24,31Zm0-12a5,5,0,1,0,5,5A5.0055,5.0055,0,0,0,24,19Z"/> <path d="M16,28A12.0134,12.0134,0,0,1,4,16H2A14.0158,14.0158,0,0,0,16,30Z"/> <path d="M12,8H7.0784A11.9843,11.9843,0,0,1,28,16h2A13.9778,13.9778,0,0,0,6,6.2344V2H4v8h8Z"/> </svg>