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/hotel.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>hotel</title><path d="M9.5,15A1.5,1.5,0,1,1,8,16.5,1.5,1.5,0,0,1,9.5,15m0-2A3.5,3.5,0,1,0,13,16.5,3.5,3.5,0,0,0,9.5,13Z"/><path d="M25,14H17a2,2,0,0,0-2,2v6H4V10.6L16,4.14l12.53,6.74.94-1.76-13-7a1,1,0,0,0-.94,0l-13,7A1,1,0,0,0,2,10V30H4V24H28v6h2V19A5,5,0,0,0,25,14Zm-8,8V16h8a3,3,0,0,1,3,3v3Z"/></svg>