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-fork-filled.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <polygon id="inner-path" class="cls-1" points="8 14 8 9.414 15 16.414 15 26 17 26 17 16.414 24 9.414 24 14 26 14 26 6 18 6 18 8 22.586 8 16 14.586 9.414 8 14 8 14 6 6 6 6 14 8 14"/> <path d="M28,2H4A2,2,0,0,0,2,4V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V4A2,2,0,0,0,28,2ZM26,14H24V9.4141l-7,7V26H15V16.4141l-7-7V14H6V6h8V8H9.4141L16,14.5859,22.5859,8H18V6h8Z" transform="translate(0)"/> </svg>