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/warning-diamond.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="m16,20c-.8284,0-1.5.6716-1.5,1.5s.6716,1.5,1.5,1.5,1.5-.6716,1.5-1.5-.6716-1.5-1.5-1.5h0Z"/> <rect x="15" y="9" width="2" height="9"/> <path d="m16,30c-.5335,0-1.0672-.2031-1.4732-.6094L2.6094,17.4732c-.8126-.8123-.8126-2.1342,0-2.9465L14.5268,2.6094c.8121-.8126,2.1344-.8126,2.9465,0l11.9173,11.9173c.8126.8123.8126,2.1342,0,2.9465l-11.9173,11.9173c-.406.4063-.9398.6094-1.4732.6094Zm0-26.0008c-.0215,0-.0427.0083-.0591.0244L4.0236,15.9409c-.0325.0327-.0325.0855,0,.1182l11.9173,11.9173c.0327.0322.0855.0322.1182,0l11.9173-11.9173c.0325-.0327.0325-.0855,0-.1182l-11.9173-11.9173c-.0164-.0161-.0376-.0244-.0591-.0244Z"/> </svg>