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/graph-aggregator.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <g> <rect x="3" y="18" width="2" height="12"/> <rect x="9" y="24" width="2" height="6"/> <rect x="15" y="16" width="2" height="14"/> <rect x="21" y="20" width="2" height="10"/> <rect x="27" y="14" width="2" height="16"/> <path d="M28,2c-1.1046,0-2,.8954-2,2,0,.178.0307.3475.0743.5117l-3.5624,3.5627c-.1644-.0437-.3339-.0745-.512-.0745-.3171,0-.6129.0805-.8793.2119l-3.1332-2.0887c.0026-.0416.0125-.081.0125-.1232,0-1.1046-.8954-2-2-2s-2,.8954-2,2c0,.279.0578.5443.1609.7855l-3.9287,5.238c-.0771-.009-.1527-.0234-.2322-.0234-.178,0-.3474.0307-.5116.0743l-3.5627-3.5627c.0436-.1642.0743-.3336.0743-.5116,0-1.1046-.8954-2-2-2s-2,.8954-2,2,.8954,2,2,2c.178,0,.3474-.0307.5116-.0743l3.5627,3.5627c-.0436.1642-.0743.3336-.0743.5116,0,1.1046.8954,2,2,2s2-.8954,2-2c0-.279-.0578-.5443-.1609-.7855l3.9286-5.238c.0771.009.1527.0234.2323.0234.3171,0,.6129-.0805.8793-.2119l3.1332,2.0887c-.0026.0416-.0125.081-.0125.1232,0,1.1046.8954,2,2,2s2-.8954,2-2c0-.178-.0307-.3474-.0743-.5116l3.5627-3.5627c.1642.0436.3336.0743.5116.0743,1.1046,0,2-.8954,2-2s-.8954-2-2-2Z"/> </g> </svg>