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/triangle-right-solid.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path class="cls-2" d="m3,2.9806c0-.5692.4772-.979,1-.9806.1628-.0005.3299.0388.4885.1249l23.9867,13.0196c.3435.1865.5248.521.5248.8555s-.1812.6694-.5248.8559L4.4885,29.8754c-.1586.0861-.3257.1251-.4885.1246-.5228-.0016-1-.4111-1-.9803V2.9806Z"/> </svg>