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/face-wink.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>face--wink</title><path d="M16,2A14,14,0,1,0,30,16,14,14,0,0,0,16,2Zm0,26A12,12,0,1,1,28,16,12,12,0,0,1,16,28Z"/><path d="M20.5,11A2.5,2.5,0,1,0,23,13.5,2.5,2.5,0,0,0,20.5,11Z"/><rect x="8" y="13" width="6" height="2"/><path d="M16,24a8,8,0,0,0,6.85-3.89l-1.71-1a6,6,0,0,1-10.28,0l-1.71,1A8,8,0,0,0,16,24Z"/></svg>