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/spray-paint.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>spray-paint</title><path d="M22.5,23A4.5,4.5,0,1,1,27,18.5,4.505,4.505,0,0,1,22.5,23Zm0-7A2.5,2.5,0,1,0,25,18.5,2.5026,2.5026,0,0,0,22.5,16Z"/><path d="M28,8H26V3H19V8H17a2.002,2.002,0,0,0-2,2V28a2.0023,2.0023,0,0,0,2,2H28a2.0027,2.0027,0,0,0,2-2V10A2.0023,2.0023,0,0,0,28,8ZM21,5h3V8H21ZM17,28V10H28l.002,18Z"/><rect x="2" y="14" width="3" height="3"/><rect x="7" y="9" width="3" height="3"/><rect x="2" y="9" width="3" height="3"/><rect x="12" y="4" width="3" height="3"/><rect x="7" y="4" width="3" height="3"/><rect x="2" y="4" width="3" height="3"/></svg>