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/person.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>person</title><path d="M18,30H14a2,2,0,0,1-2-2V21a2,2,0,0,1-2-2V13a3,3,0,0,1,3-3h6a3,3,0,0,1,3,3v6a2,2,0,0,1-2,2v7A2,2,0,0,1,18,30ZM13,12a.94.94,0,0,0-1,1v6h2v9h4V19h2V13a.94.94,0,0,0-1-1Z"/><path d="M16,9a4,4,0,1,1,4-4h0A4,4,0,0,1,16,9Zm0-6a2,2,0,1,0,2,2h0a2,2,0,0,0-2-2Z"/></svg>