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/smell.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>smell</title><path d="M22,15V10H20v7h2a3,3,0,0,1,0,6H21V21H19v2a3,3,0,0,1-6,0V21H11v2H10a3,3,0,0,1,0-6h2V9a3,3,0,0,1,3-3h1V4H15a5,5,0,0,0-5,5v6a5,5,0,0,0,0,10h1.42a5,5,0,0,0,9.16,0H22a5,5,0,0,0,0-10Z"/></svg>