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/direction-rotary-first-right.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <title>direction--rotary--first-right</title> <path d="M26,18v6.5859L15.8712,14.457A5.9242,5.9242,0,0,0,17,11a6,6,0,1,0-7,5.91V28h2V16.91a5.9566,5.9566,0,0,0,2.4554-1.04L24.5859,26H18v2H28V18ZM11,15a4,4,0,1,1,4-4A4.0045,4.0045,0,0,1,11,15Z"/> </svg>