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/wifi-not-secure.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M20,20H14V17a2,2,0,0,1,4,0h2a4,4,0,0,0-8,0v3a2.0025,2.0025,0,0,0-2,2v6a2.0025,2.0025,0,0,0,2,2h8a2.0025,2.0025,0,0,0,2-2V22A2.0025,2.0025,0,0,0,20,20Zm0,8H12V22h8Z" transform="translate(0 0)"/> <path d="M16,8a8.9709,8.9709,0,0,0-6.3608,2.6392l1.4133,1.4135a6.9887,6.9887,0,0,1,9.895,0l1.4135-1.4135A8.9717,8.9717,0,0,0,16,8Z" transform="translate(0 0)"/> <path d="M6.105,7.105,7.5188,8.5186a11.9808,11.9808,0,0,1,16.9624,0L25.8949,7.105a13.9782,13.9782,0,0,0-19.79,0Z" transform="translate(0 0)"/> </svg>