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/bluetooth-off.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>bluetooth--off</title><path d="M28,26.59,5.41,4,4,5.41,14.59,16,7,23.59,8.41,25,15,18.41V29a1,1,0,0,0,.58.91A1.06,1.06,0,0,0,16,30a1,1,0,0,0,.65-.24l6.3-5.4L26.59,28Zm-11,.24V18.41l4.53,4.53Z"/><path d="M17,12.75V5.17l4.53,3.89-4.11,4.11,1.41,1.41,4.88-4.87A1,1,0,0,0,24,9a1,1,0,0,0-.35-.72l-7-6a1,1,0,0,0-1.07-.15A1,1,0,0,0,15,3v7.75Z"/></svg>