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/events-alt.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>events--alt</title><path d="M18,31h2V29a1.0006,1.0006,0,0,1,1-1h6a1.0006,1.0006,0,0,1,1,1v2h2V29a3.0033,3.0033,0,0,0-3-3H21a3.0033,3.0033,0,0,0-3,3Z" transform="translate(0 0)"/><path d="M24,25a4,4,0,1,1,4-4A4.0039,4.0039,0,0,1,24,25Zm0-6a2,2,0,1,0,2,2A2.0027,2.0027,0,0,0,24,19Z" transform="translate(0 0)"/><path d="M2,31H4V29a1.0009,1.0009,0,0,1,1-1h6a1.0009,1.0009,0,0,1,1,1v2h2V29a3.0033,3.0033,0,0,0-3-3H5a3.0033,3.0033,0,0,0-3,3Z" transform="translate(0 0)"/><path d="M8,25a4,4,0,1,1,4-4A4.0042,4.0042,0,0,1,8,25Zm0-6a2,2,0,1,0,2,2A2.0023,2.0023,0,0,0,8,19Z" transform="translate(0 0)"/><path d="M18,16h2V14a1.0009,1.0009,0,0,1,1-1h6a1.0009,1.0009,0,0,1,1,1v2h2V14a3.0033,3.0033,0,0,0-3-3H21a3.0033,3.0033,0,0,0-3,3Z" transform="translate(0 0)"/><path d="M24,10a4,4,0,1,1,4-4A4.0042,4.0042,0,0,1,24,10Zm0-6a2,2,0,1,0,2,2A2.0023,2.0023,0,0,0,24,4Z" transform="translate(0 0)"/><path d="M2,16H4V14a1.0013,1.0013,0,0,1,1-1h6a1.0013,1.0013,0,0,1,1,1v2h2V14a3.0033,3.0033,0,0,0-3-3H5a3.0033,3.0033,0,0,0-3,3Z" transform="translate(0 0)"/><path d="M8,10a4,4,0,1,1,4-4A4.0045,4.0045,0,0,1,8,10ZM8,4a2,2,0,1,0,2,2A2.002,2.002,0,0,0,8,4Z" transform="translate(0 0)"/></svg>