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/events.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>events</title><path d="M26,14H24v2h2a3.0033,3.0033,0,0,1,3,3v4h2V19A5.0058,5.0058,0,0,0,26,14Z" transform="translate(0 0)"/><path d="M24,4a3,3,0,1,1-3,3,3,3,0,0,1,3-3m0-2a5,5,0,1,0,5,5A5,5,0,0,0,24,2Z" transform="translate(0 0)"/><path d="M23,30H21V28a3.0033,3.0033,0,0,0-3-3H14a3.0033,3.0033,0,0,0-3,3v2H9V28a5.0059,5.0059,0,0,1,5-5h4a5.0059,5.0059,0,0,1,5,5Z" transform="translate(0 0)"/><path d="M16,13a3,3,0,1,1-3,3,3,3,0,0,1,3-3m0-2a5,5,0,1,0,5,5A5,5,0,0,0,16,11Z" transform="translate(0 0)"/><path d="M8,14H6a5.0059,5.0059,0,0,0-5,5v4H3V19a3.0033,3.0033,0,0,1,3-3H8Z" transform="translate(0 0)"/><path d="M8,4A3,3,0,1,1,5,7,3,3,0,0,1,8,4M8,2a5,5,0,1,0,5,5A5,5,0,0,0,8,2Z" transform="translate(0 0)"/></svg>