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/distribute-vertical-center.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>distribute--vertical-center</title><path d="M30,21H26V20a2.0023,2.0023,0,0,0-2-2H8a2.0023,2.0023,0,0,0-2,2v1H2v2H6v1a2.0023,2.0023,0,0,0,2,2H24a2.0023,2.0023,0,0,0,2-2V23h4Zm-6,3H8V20l16-.001Z"/><path d="M30,9H22V8a2.0023,2.0023,0,0,0-2-2H12a2.0023,2.0023,0,0,0-2,2V9H2v2h8v1a2.0023,2.0023,0,0,0,2,2h8a2.0023,2.0023,0,0,0,2-2V11h8ZM20,12H12V8l8-.001Z"/></svg>