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/curved-line-solid.svg

@@ -0,0 +1,2 @@
+<svg id="icons" width="32" height="32" version="1.1" viewBox="0 0 32 32"> <!-- Generator: Adobe Illustrator 30.1.0, SVG Export Plug-In . SVG Version: 2.1.1 Build 136) --> <path d="M29.9883,30l-1.992-.115c.0088-.1501.0078-.3007.0078-.4512,0-14.0263-11.4111-25.4379-25.4379-25.4379-.154-.0034-.3011-.001-.4512.0083l-.115-1.993c.1891-.0107.3772-.0112.5662-.0112,15.1271,0,27.4338,12.3067,27.4338,27.4338,0,.1886-.001.3772-.0117.5662Z"/> <rect id="_x3C_Transparent_Rectangle_x3E_" class="st0" width="32" height="32"/>
+</svg>