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/microphone-off-filled.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>microphone--off--filled</title><path d="M23,17a7,7,0,0,1-11.73,5.14l1.42-1.41A5,5,0,0,0,21,17V12.42l9-9L28.59,2,2,28.59,3.41,30l6.44-6.44A8.91,8.91,0,0,0,15,25.94V28H11v2H21V28H17V25.94A9,9,0,0,0,25,17V14H23Z"/><path d="M9,17.32c0-.11,0-.21,0-.32V14H7v3a9,9,0,0,0,.25,2.09Z"/><path d="M20.76,5.58A5,5,0,0,0,11,7v8.34Z"/></svg>