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/load-balancer-classic.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <rect x="4" y="26" width="4" height="4"/> <rect x="14" y="26" width="4" height="4"/> <rect x="24" y="26" width="4" height="4"/> <path d="M25,16H17V12H15v4H7a2.0023,2.0023,0,0,0-2,2v6H7V18h8v6h2V18h8v6h2V18A2.0023,2.0023,0,0,0,25,16Z" transform="translate(0 0)"/> <path d="M20,10V2H12v8ZM14,8V4h4V8Z" transform="translate(0 0)"/> </svg>