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/ibm-databand.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M27.69,16.37c.84.83,1.31,1.97,1.31,3.15,0,1.19-.47,2.33-1.32,3.17-.88.87-2.03,1.31-3.18,1.31s-2.31-.44-3.19-1.31c-.59-.59-7.76-7.72-10.76-10.7l-1.27-1.27c-.59-.61-1.46-.84-2.28-.66-.47.11-.91.31-1.26.66-.47.47-.73,1.1-.73,1.76s.26,1.29.73,1.76c.52.51,6.74,6.7,6.74,6.7l-1.42,1.41-6.74-6.7c-.85-.85-1.32-1.97-1.32-3.17s.47-2.32,1.32-3.17c.85-.85,1.98-1.31,3.18-1.31s2.33.47,3.18,1.31l1.27,1.27,10.76,10.7c.98.97,2.56.97,3.54,0,.47-.47.73-1.1.73-1.76s-.26-1.29-.73-1.76l-6.73-6.69,1.42-1.41,6.74,6.7h0l.01.01ZM16,2c2.21,0,4,1.79,4,4s-1.79,4-4,4h0c-2.21,0-4-1.79-4-4s1.79-4,4-4h0ZM16.02,8c1.09,0,1.98-.9,1.98-2s-.89-2-1.98-2h-.09c-1.1.03-1.96.95-1.93,2.04h0c.02,1.1.92,1.97,2.02,1.95h0v.01ZM20,26c0,2.21-1.79,4-4,4s-4-1.79-4-4,1.79-4,4-4,4,1.79,4,4ZM16.02,28c1.09,0,1.98-.9,1.98-2s-.89-2-1.98-2h-.09c-1.1.03-1.96.95-1.93,2.04h0c.02,1.1.92,1.97,2.02,1.95h0v.01Z"/> </svg>