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/funnel-sort.svg

@@ -0,0 +1,2 @@
+<svg id="icon" version="1.1" viewBox="0 0 32 32"> <!-- Generator: Adobe Illustrator 29.5.1, SVG Export Plug-In . SVG Version: 2.1.0 Build 141) --> <path d="M21.4,15.6l2.6,2.6h0l2.6-2.6,1.4,1.4-4,4-4-4,1.4-1.4ZM21.4,13.4l2.6-2.6h0l2.6,2.6,1.4-1.4-4-4-4,4,1.4,1.4ZM26,4H4c-1.1,0-2,.9-2,2v3.2c0,.5.2,1,.6,1.4l7.4,7.4v8c0,1.1.9,2,2,2h4c1.1,0,2-.9,2-2v-4h-2v4h-4v-8.8l-.6-.6-7.4-7.4v-3.2h22v-2h0Z"/> <rect id="__x3C_Transparent_Rectangle_x3E_" class="st0" width="32" height="32"/>
+</svg>