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/swot.svg

@@ -0,0 +1 @@
+<svg id="Layer_1" data-name="Layer 1" width="32" height="32" viewBox="0 0 32 32"> <path id="swot" d="M17,30h-2v-13H2v-2h13V2h2v13h13v2h-13v13ZM28,28h-6v-6h6v6ZM24,26h2v-2h-2v2ZM10,27h-6v-6h6v6ZM6,25h2v-2h-2v2ZM25,13h-6v-6h6v6ZM21,11h2v-2h-2v2ZM11,12h-6v-6h6v6ZM7,10h2v-2h-2v2Z"/> </svg>