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/expand-screen-filled.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="M17,18h11c1.1046,0,2,.8954,2,2v6c0,1.1046-.8954,2-2,2h-11c-1.1046,0-2-.8954-2-2v-6c0-1.1046.8954-2,2-2ZM8,16v-3.586s4.2931,4.293,4.2931,4.293l1.414-1.414-4.293-4.293h3.5859v-2h-7v7h2ZM13,22H4c-1.104-.0013-1.9987-.896-2-2V7c.0011-1.1041.8959-1.9989,2-2h22c1.104.0013,1.9987.896,2,2v9h-2V7H4v13h9v2Z"/> <rect id="__x3C_Transparent_Rectangle_x3E_" class="st0" width="32" height="32"/>
+</svg>