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-z-os-containers.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="m29,12h-9V3h9v9Zm-7-2h5v-5h-5v5Z"/> <path d="m20,15v2h7v10h-10V3H5c-1.1028,0-2,.8975-2,2v22c0,1.1025.8972,2,2,2h22c1.1028,0,2-.8975,2-2v-12h-9Zm-13.5859,2h8.5859v8.5859l-8.5859-8.5859Zm8.5859-2H6.4141L15,6.4141v8.5859Zm-1.4141-10L5,13.5859V5h8.5859Zm-8.5859,13.4141l8.5859,8.5859H5v-8.5859Z"/> </svg>