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/transform-pipeline.svg

@@ -0,0 +1,2 @@
+<svg id="icon" width="32" height="32" version="1.1" viewBox="0 0 32 32"> <!-- Generator: Adobe Illustrator 30.2.1, SVG Export Plug-In . SVG Version: 2.1.1 Build 1) --> <path d="M25,11l-1.4,1.4,2.6,2.6h-5.2v-2c0-1.1-.9-2-2-2h-6c-1.1,0-2,.9-2,2v2h-3.2c-.4-1.2-1.5-2-2.8-2s-3,1.3-3,3,1.3,3,3,3,2.4-.8,2.8-2h3.2v2c0,1.1.9,2,2,2h6c1.1,0,2-.9,2-2v-2h5.2l-2.6,2.6,1.4,1.4,5-5-5-5ZM19,19h-6v-6h6v6Z"/> <rect id="__x3C_Transparent_Rectangle_x3E_" class="st0" width="32" height="32"/>
+</svg>