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/coupling-facility.svg

@@ -0,0 +1 @@
+<svg id="Layer_1" data-name="Layer 1" width="32" height="32" viewBox="0 0 32 32"> <path d="M29,30H3c-.3467,0-.6685-.1797-.8506-.4746s-.1987-.6631-.0439-.9727L15.1055,2.5527c.3389-.6777,1.4502-.6777,1.7891,0l13,26c.1553.3096.1387.6777-.0439.9727s-.5039.4746-.8506.4746ZM4.6182,28h22.7637L16,5.2358,4.6182,28Z"/> </svg>