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/map.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>map</title><path d="M16,24l-6.09-8.6A8.14,8.14,0,0,1,16,2a8.08,8.08,0,0,1,8,8.13,8.2,8.2,0,0,1-1.8,5.13ZM16,4a6.07,6.07,0,0,0-6,6.13,6.19,6.19,0,0,0,1.49,4L16,20.52,20.63,14A6.24,6.24,0,0,0,22,10.13,6.07,6.07,0,0,0,16,4Z" transform="translate(0 0)"/><circle cx="16" cy="9" r="2"/><path d="M28,12H26v2h2V28H4V14H6V12H4a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V14A2,2,0,0,0,28,12Z" transform="translate(0 0)"/></svg>