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/ibm-aspera.svg

@@ -0,0 +1,2 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M28,11c-.75,0-1.39.4-1.73,1h-10.27c-2.21,0-4,1.79-4,4,0,.73.21,1.41.56,2h-6.83c-.34-.6-.98-1-1.73-1-1.12,0-2,.88-2,2s.88,2,2,2c.75,0,1.39-.4,1.73-1h10.27c2.21,0,4-1.79,4-4,0-.73-.21-1.41-.56-2h6.83c.34.6.98,1,1.73,1,1.12,0,2-.88,2-2s-.88-2-2-2ZM18,16c0,1.1-.9,2-2,2s-2-.9-2-2,.9-2,2-2,2,.9,2,2ZM5.05,15h-2c0-7.29,5.08-12,12.95-12h10v2h-10c-6.75,0-10.95,3.83-10.95,10ZM16.05,29H6.05v-2h10c6.14,0,10.95-4.39,10.95-10h2c0,6.73-5.69,12-12.95,12Z"/> <rect id="_x3C_Transparent_Rectangle_x3E_" class="cls-1" width="32" height="32"/>
+</svg>