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/infrastructure-classic.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <rect x="18" y="26" width="12" height="2"/> <rect x="18" y="21" width="12" height="2"/> <rect x="18" y="16" width="12" height="2"/> <path d="M14,25H9.5A7.4964,7.4964,0,0,1,8.1782,10.124,10,10,0,0,1,28,12H26a7.999,7.999,0,0,0-15.9507-.87l-.09.8335L9.123,12.02A5.4962,5.4962,0,0,0,9.5,23H14Z" transform="translate(0 0)"/> </svg>