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/radio.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>radio</title><path d="M28,10H24V2H22v8H13V8H11v2H8V8H6v2H4a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V12A2,2,0,0,0,28,10ZM4,28V12H28V28Z" transform="translate(0)"/><path d="M10,26a4,4,0,1,1,4-4A4,4,0,0,1,10,26Zm0-6a2,2,0,1,0,2,2A2,2,0,0,0,10,20Z" transform="translate(0)"/><rect x="7" y="14" width="6" height="2"/><rect x="17" y="16" width="9" height="2"/><rect x="17" y="20" width="9" height="2"/><rect x="17" y="24" width="9" height="2"/></svg>