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/compare.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>compare</title><path d="M28,6H18V4a2,2,0,0,0-2-2H4A2,2,0,0,0,2,4V24a2,2,0,0,0,2,2H14v2a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V8A2,2,0,0,0,28,6ZM4,15h6.17L7.59,17.59,9,19l5-5L9,9,7.59,10.41,10.17,13H4V4H16V24H4ZM16,28V26a2,2,0,0,0,2-2V8H28v9H21.83l2.58-2.59L23,13l-5,5,5,5,1.41-1.41L21.83,19H28v9Z" transform="translate(0)"/></svg>