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/direction-loop-left-filled.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path id="inner-path" class="cls-1" d="M16,18h2v8H16ZM4,15l7,7,1.4141-1.4141L7.8281,16H21a5,5,0,1,0-5-5v1h2V11a3,3,0,1,1,3,3H7.8281l4.586-4.5859L11,8Z" transform="translate(0 0)"/> <path d="M2,4V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V4a2,2,0,0,0-2-2H4A2,2,0,0,0,2,4ZM16,18h2v8H16ZM4,15l7-7,1.4141,1.4141L7.8281,14H21a3,3,0,1,0-3-3v1H16V11a5,5,0,1,1,5,5H7.8281l4.586,4.5859L11,22Z" transform="translate(0 0)"/> </svg>