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/earth.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>earth</title><path d="M16,2A14,14,0,1,0,30,16,14.0158,14.0158,0,0,0,16,2Zm5,3.1055a12.0136,12.0136,0,0,1,2.9158,1.8994L23.5034,8H21ZM13.3784,27.7026A11.9761,11.9761,0,0,1,8.1157,6.9761L9.4648,9h3.3423l-1.5,4H7.2793L5.8967,17.1475,8.4648,21h5l1.4319,2.1475ZM16,28c-.2034,0-.4016-.02-.6025-.03l1.3967-4.19a1.9876,1.9876,0,0,0-.2334-1.7412l-1.4319-2.1475A1.9962,1.9962,0,0,0,13.4648,19h-3.93L8.1033,16.8525,8.7207,15H11v2h2V14.1812l2.9363-7.83-1.8726-.7022L13.5571,7H10.5352L9.728,5.7891A11.7941,11.7941,0,0,1,19,4.395V8a2.0025,2.0025,0,0,0,2,2h2.5857A1.9865,1.9865,0,0,0,25,9.4141l.1406-.1407.2818-.68A11.9813,11.9813,0,0,1,27.3,12H22.5986a1.9927,1.9927,0,0,0-1.9719,1.665L20.03,17.1064a1.99,1.99,0,0,0,.991,2.086l2.1647,1.4638,1.4585,3.646A11.9577,11.9577,0,0,1,16,28Zm8.8145-8.6563L22.1,17.5088l-.1-.06L22.5986,14h5.2207a11.743,11.743,0,0,1-1.7441,8.4951Z"/><g id="_Transparent_Rectangle_" data-name="&lt;Transparent Rectangle&gt;"><rect class="cls-1" width="32" height="32"/></g></svg>