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/bsam-qsam-zedc.svg

@@ -0,0 +1,2 @@
+<svg id="icon" version="1.1" viewBox="0 0 32 32"> <!-- Generator: Adobe Illustrator 29.6.1, SVG Export Plug-In . SVG Version: 2.1.1 Build 9) --> <path d="M24,25h2v3c0,1.1-.9,2-2,2H6c-1.1,0-2-.9-2-2V4c0-1.1.9-2,2-2h18c1.1,0,2,.9,2,2v3h-2v-3H6v24h18v-3ZM16,26v-5.2l2.3,2.3,1.4-1.4-4.7-4.7-4.7,4.7,1.4,1.4,2.3-2.3v5.2s2,0,2,0h0ZM18.3,8.9l-2.3,2.3v-5.2h-2v5.2s-2.3-2.3-2.3-2.3l-1.4,1.4,4.7,4.7,4.7-4.7-1.4-1.4h0ZM22,17h6v-2h-6v2ZM22,11v2h6v-2h-6ZM22,21h6v-2h-6v2Z"/> <rect id="__x3C_Transparent_Rectangle_x3E_" class="st0" width="32" height="32"/>
+</svg>