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/energy-renewable.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M29,14H28V10H26v4H24V10H22v4H21a1,1,0,0,0-1,1v4a5.0079,5.0079,0,0,0,4,4.8989V27a1.0008,1.0008,0,0,1-1,1H5a1,1,0,0,1,0-2h5a3,3,0,0,0,0-6H5a1,1,0,0,1,0-2h5a3.0033,3.0033,0,0,0,3-3V11h1a4.0045,4.0045,0,0,0,4-4V4H15a3.979,3.979,0,0,0-2.7468,1.1064A6.0041,6.0041,0,0,0,7,2H4V5a6.0066,6.0066,0,0,0,6,6h1v4a1.0008,1.0008,0,0,1-1,1H5a3,3,0,0,0,0,6h5a1,1,0,0,1,0,2H5a3,3,0,0,0,0,6H23a3.0033,3.0033,0,0,0,3-3V23.8989A5.0079,5.0079,0,0,0,30,19V15A1,1,0,0,0,29,14ZM13,8a2.002,2.002,0,0,1,2-2h1V7a2.002,2.002,0,0,1-2,2H13ZM10,9A4.0045,4.0045,0,0,1,6,5V4H7a4.0045,4.0045,0,0,1,4,4V9ZM28,19a3,3,0,0,1-6,0V16h6Z" transform="translate(0 0)"/> </svg>