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/military-camp.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M27,28v-10.48a2.0035,2.0035,0,0,0-.853-1.6387L17,9.48V8h6V2H15V9.48L5.8528,15.8823A2.0023,2.0023,0,0,0,5,17.5205V28H2v2H30V28ZM17,4h4V6H17ZM7,17.5205l9-6.3,9,6.3V28H17V20H15v8H7Z"/> </svg>