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/encryption.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M29,21.2783V19a4,4,0,0,0-8,0v2.2783A1.9935,1.9935,0,0,0,20,23v5a2.0025,2.0025,0,0,0,2,2h6a2.0025,2.0025,0,0,0,2-2V23A1.9935,1.9935,0,0,0,29,21.2783ZM25,17a2.0025,2.0025,0,0,1,2,2v2H23V19A2.0025,2.0025,0,0,1,25,17ZM22,28V23h6v5Z"/> <rect x="2" y="2" width="2" height="4"/> <rect x="14" y="2" width="2" height="4"/> <rect x="18" y="2" width="2" height="4"/> <rect x="2" y="8" width="2" height="8"/> <rect x="2" y="18" width="2" height="8"/> <rect x="14" y="18" width="2" height="8"/> <rect x="6" y="8" width="2" height="8"/> <rect x="18" y="8" width="2" height="6"/> <path d="M10,26H8a2.0023,2.0023,0,0,1-2-2V20a2.0023,2.0023,0,0,1,2-2h2a2.0023,2.0023,0,0,1,2,2v4A2.0023,2.0023,0,0,1,10,26ZM8,20v4h2V20Z"/> <path d="M14,16H12a2.0023,2.0023,0,0,1-2-2V10a2.0023,2.0023,0,0,1,2-2h2a2.0023,2.0023,0,0,1,2,2v4A2.0023,2.0023,0,0,1,14,16Zm-2-6v4h2V10Z"/> <path d="M10,6H8A2.0023,2.0023,0,0,1,6,4V2H8V4h2V2h2V4A2.0023,2.0023,0,0,1,10,6Z"/> </svg>