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/socket.svg

@@ -0,0 +1 @@
+<svg id="Layer_1" data-name="Layer 1" width="32" height="32" viewBox="0 0 32 32"> <path d="M29,30H3c-.5522,0-1-.4473-1-1V3c0-.5522.4478-1,1-1h26c.5527,0,1,.4478,1,1v26c0,.5527-.4473,1-1,1ZM4,28h24V4H4v24ZM16,26c-5.5142,0-10-4.4863-10-10s4.4858-10,10-10,10,4.4858,10,10-4.4863,10-10,10ZM16,8c-4.4111,0-8,3.5889-8,8s3.5889,8,8,8,8-3.5889,8-8-3.5889-8-8-8ZM13.5,16c0-.8284-.6716-1.5-1.5-1.5s-1.5.6716-1.5,1.5.6716,1.5,1.5,1.5,1.5-.6716,1.5-1.5ZM21.5,16c0-.8284-.6716-1.5-1.5-1.5s-1.5.6716-1.5,1.5.6716,1.5,1.5,1.5,1.5-.6716,1.5-1.5Z"/> </svg>