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/array-date-time.svg

@@ -0,0 +1,2 @@
+<svg id="Icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M20,14c-3.3137,0-6,2.6863-6,6s2.6863,6,6,6,6-2.6863,6-6-2.6863-6-6-6ZM21.5859,23l-2.5859-2.5854v-4.4143h2v3.5857l2,2-1.4141,1.4141ZM8,9h3v2.0001h2v-2.0001h6v2.0001h2v-2.0001h3v4h2v-4c0-1.1-.9-2-2-2h-3v-2h-2v2h-6v-2h-2v2h-3c-1.1,0-2,.9-2,2v14c0,1.1.9,2,2,2h4v-2h-4v-14ZM4,24h-2v4c0,1.1.9,2,2,2h4v-2h-4v-4ZM28,28h-4v2h4c1.1,0,2-.9,2-2v-4h-2v4ZM4,4h4v-2h-4c-1.1,0-2,.9-2,2v4h2v-4ZM28,2h-4v2h4v4h2v-4c0-1.1-.9-2-2-2Z"/> <rect class="cls-1" x="0" y="0" width="32" height="32"/>
+</svg>