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/close-large.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <polygon points="17.4141 16 26 7.4141 24.5859 6 16 14.5859 7.4143 6 6 7.4141 14.5859 16 6 24.5859 7.4143 26 16 17.4141 24.5859 26 26 24.5859 17.4141 16"/> </svg>