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/integration.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>integration</title><path d="M29.88,15.52l-6-11A1,1,0,0,0,23,4H9a1,1,0,0,0-.88.52l-6,11a1,1,0,0,0,0,1l6,11A1,1,0,0,0,9,28H23a1,1,0,0,0,.88-.52l6-11A1,1,0,0,0,29.88,15.52ZM22.93,7l4.39,8h-9.5ZM16,14.14,10.82,6H21.18ZM9.07,7l5.11,8H4.68ZM4.68,17h9.5L9.07,25ZM16,17.86,21.18,26H10.82ZM22.93,25l-5.11-8h9.5Z"/></svg>