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/function-2.svg

@@ -0,0 +1,2 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M12.3,13l-1.3,13.2c-.1.9926-.9,1.8-1.9,1.8h-5.1v-2h5l1.3-13h-4.3v-2h4.5l.5-5.2c.0916-1.0019,1-1.8,2-1.8h5v2h-5l-.5,5h4.5v2h-4.7ZM16,19v7c0,1.1.9,2,2,2h2v-2h-2v-7h2v-2h-2c-1.1,0-2,.9-2,2ZM26,17h-2v2h2v7h-2v2h2c1.1,0,2-.9,2-2v-7c0-1.1-.9-2-2-2Z"/> <rect id="_x3C_Transparent_Rectangle_x3E_" class="cls-1" width="32" height="32"/>
+</svg>