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/temperature-fahrenheit.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <polygon points="30 6 30 4 22 4 22 18 24 18 24 12 29 12 29 10 24 10 24 6 30 6"/> <circle cx="18" cy="4" r="2"/> <path d="M10,20.1841V12H8v8.1841a3,3,0,1,0,2,0Z" transform="translate(0 0)"/> <path d="M9,30A6.9931,6.9931,0,0,1,4,18.1108V7A5,5,0,0,1,14,7V18.1108A6.9931,6.9931,0,0,1,9,30ZM9,4A3.0033,3.0033,0,0,0,6,7V18.9834l-.332.2983a5,5,0,1,0,6.664,0L12,18.9834V7A3.0033,3.0033,0,0,0,9,4Z" transform="translate(0 0)"/> </svg>