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/subtract-filled.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="m16,2c-7.6,0-14,6.4-14,14s6.4,14,14,14,14-6.4,14-14S23.6,2,16,2Zm8,15H8v-2h16v2Z"/> <polygon id="_inner-path_" data-name="&amp;lt;inner-path&amp;gt;" class="cls-1" points="24 17 8 17 8 15 24 15 24 17"/> </svg>