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/location-current.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M4,12.9835a1,1,0,0,0,.6289.9448l9.6015,3.8409,3.8407,9.6019A1,1,0,0,0,19,28h.0162a1.0009,1.0009,0,0,0,.9238-.6582l8-22.0007A1,1,0,0,0,26.658,4.0594l-22,8A1.0011,1.0011,0,0,0,4,12.9835Z" transform="translate(0)"/> </svg>