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/license-third-party.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <rect x="8" y="14" width="6" height="2"/> <rect x="8" y="6" width="12" height="2"/> <rect x="8" y="10" width="12" height="2"/> <rect x="8" y="24" width="6" height="2"/> <path d="M27,25H21a3,3,0,0,0-3,3v2h2V28a1,1,0,0,1,1-1h6a1,1,0,0,1,1,1v2h2V28A3,3,0,0,0,27,25Z"/> <path d="M24,24a4,4,0,1,0-4-4A4,4,0,0,0,24,24Zm0-6a2,2,0,1,1-2,2A2,2,0,0,1,24,18Z"/> <path d="M14,30H6a2.0021,2.0021,0,0,1-2-2V4A2.0021,2.0021,0,0,1,6,2H22a2.0021,2.0021,0,0,1,2,2V14H22V4H6V28h8Z"/> </svg>