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/avro.svg

@@ -0,0 +1,2 @@
+<svg id="Icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M5,11h-2c-1.1,0-2,.9-2,2v8h2v-4h2v4h2v-8c0-1.1-.9-2-2-2ZM5,15h-2v-2h2v2ZM21,11h-4v10h2v-4h.4l1.6,4h2l-1.6-4c.9-.2,1.6-1,1.6-2v-2c0-1.1-.9-2-2-2ZM21,15h-2v-2h2v2ZM12,18l-1-7h-2l2,10h2l2-10h-2l-1,7ZM29,11h-2c-1.1,0-2,.9-2,2v6c0,1.1.9,2,2,2h2c1.1,0,2-.9,2-2v-6c0-1.1-.9-2-2-2ZM29,19h-2v-6h2v6Z"/> <polyline id="_Transparent_Rectangle_" data-name="&amp;lt;Transparent Rectangle&amp;gt;" class="cls-1" points="32 32 0 32 0 0 32 0"/>
+</svg>