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/document-video.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M30,19l-4,3.2V20a2.0023,2.0023,0,0,0-2-2H16a2.0023,2.0023,0,0,0-2,2v6a2.0023,2.0023,0,0,0,2,2h8a2.0023,2.0023,0,0,0,2-2V23.8L30,27ZM16,26V20h8l.0015,6Z"/> <path d="M12,28H8V4h8v6a2.0058,2.0058,0,0,0,2,2h6v3l2,0V10a.9092.9092,0,0,0-.3-.7l-7-7A.9087.9087,0,0,0,18,2H8A2.0058,2.0058,0,0,0,6,4V28a2.0058,2.0058,0,0,0,2,2h4ZM18,4.4,23.6,10H18Z"/> </svg>