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/reflect-vertical.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path class="cls-1" d="M16.79,19.386l7,9A1,1,0,0,1,23,30H9a1,1,0,0,1-.79-1.614l7-9a1,1,0,0,1,1.5791,0Z"/> <rect class="cls-1" x="15" y="2" width="2" height="28" transform="translate(0 32) rotate(-90)"/> <path class="cls-1" d="M16,13a1.001,1.001,0,0,1-.79-.386l-7-9A1,1,0,0,1,9,2H23a1,1,0,0,1,.79,1.614l-7,9A1.001,1.001,0,0,1,16,13ZM11.0444,4,16,10.3711,20.9556,4Z"/> </svg>