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-cloud-dedicated-host.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <circle cx="9" cy="6" r="1"/> <path d="M26,2H6A2,2,0,0,0,4,4V8a2,2,0,0,0,2,2h9v4h2V10h9a2,2,0,0,0,2-2V4A2,2,0,0,0,26,2Zm0,6H6V4H26Z" transform="translate(0 0)"/> <polygon points="17 28 17 26 15 26 15 28 4 28 4 30 28 30 28 28 17 28"/> <circle id="machine" cx="9" cy="20" r="1"/> <path id="dedicated_host" data-name="dedicated host" d="M6,24H26a2,2,0,0,0,2-2V18a2,2,0,0,0-2-2H6a2,2,0,0,0-2,2v4A2,2,0,0,0,6,24Zm0-6H26v4H6Z" transform="translate(0 0)"/> </svg>