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/mammogram.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>mammogram</title><polygon points="25 32 32 32 32 25 30 25 30 30 25 30 25 32"/><path d="M25,27H22V17h3a3.0033,3.0033,0,0,1,3,3v4A3.0033,3.0033,0,0,1,25,27Zm-1-2h1a1.0006,1.0006,0,0,0,1-1V20a1.0006,1.0006,0,0,0-1-1H24Z" transform="translate(0 0)"/><path d="M20,27H14V23a2.002,2.002,0,0,1,2-2h2V19H14V17h4a2.0023,2.0023,0,0,1,2,2v2a2.0023,2.0023,0,0,1-2,2H16v2h4Z" transform="translate(0 0)"/><path d="M25,15H22V5h3a3.0033,3.0033,0,0,1,3,3v4A3.0033,3.0033,0,0,1,25,15Zm-1-2h1a1.0009,1.0009,0,0,0,1-1V8a1.0009,1.0009,0,0,0-1-1H24Z" transform="translate(0 0)"/><path d="M18,5H14V7h4V9H15v2h3v2H14v2h4a2.0027,2.0027,0,0,0,2-2V7A2.0023,2.0023,0,0,0,18,5Z" transform="translate(0 0)"/><path d="M10,27H8V23.9541C3.2847,23.5117,2,19.9443,2,18c0-3.0146,2.082-4.5015,3.9189-5.814C7.5723,11.0054,9,9.9854,9,8V5h2V8c0,3.0146-2.082,4.5015-3.9189,5.814C5.4277,14.9946,4,16.0146,4,18c.0054.4033.1914,4,5,4a1,1,0,0,1,1,1Z" transform="translate(0 0)"/><polygon points="7 0 0 0 0 7 2 7 2 2 7 2 7 0"/></svg>