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/stop-outline.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>stop--outline</title><path d="M16,4A12,12,0,1,1,4,16,12,12,0,0,1,16,4m0-2A14,14,0,1,0,30,16,14,14,0,0,0,16,2Z" transform="translate(0)"/><path d="M20,12v8H12V12h8m0-2H12a2,2,0,0,0-2,2v8a2,2,0,0,0,2,2h8a2,2,0,0,0,2-2V12a2,2,0,0,0-2-2Z" transform="translate(0)"/></svg>