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/scalpel.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>scalpel</title><path d="M28.83,5.17a4.1,4.1,0,0,0-5.66,0L.34,28H9.59a5,5,0,0,0,3.53-1.46L28.83,10.83a4,4,0,0,0,0-5.66ZM12.29,18.88l2.09-2.09,2.83,2.83-2.09,2.09Zm-.58,6.24A3,3,0,0,1,9.59,26H5.17l5.71-5.71,2.83,2.83ZM27.41,9.41l-8.79,8.8-2.83-2.83,8.8-8.79a2,2,0,0,1,2.82,0,2,2,0,0,1,0,2.82Z"/></svg>