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/text-mining.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>text-mining</title><rect x="18" y="28" width="8" height="2"/><rect x="18" y="24" width="12" height="2"/><rect x="18" y="20" width="12" height="2"/><polygon points="16.001 26.473 16 26.473 4.284 12.955 9.5 6 22.5 6 27.716 12.955 24.476 16.692 25.989 18.002 30.284 13.045 23.5 4 8.5 4 1.716 13.045 14.488 27.782 16.001 26.473"/></svg>