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/windy-strong.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>windy--strong</title><path d="M13,30a5.0057,5.0057,0,0,1-5-5h2a3,3,0,1,0,3-3H4V20h9a5,5,0,0,1,0,10Z"/><path d="M25,25a5.0057,5.0057,0,0,1-5-5h2a3,3,0,1,0,3-3H2V15H25a5,5,0,0,1,0,10Z"/><path d="M21,12H6V10H21a3,3,0,1,0-3-3H16a5,5,0,1,1,5,5Z"/></svg>