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/ibm-content-cortex-repository.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M26,32l-2.1387-1.0117c-1.7383-.8232-2.8613-2.5977-2.8613-4.5205v-6.4678h10v6.4678c0,1.9238-1.123,3.6973-2.8613,4.5195l-2.1387,1.0127Zm-1.2832-2.8203l1.2832,.6074,1.2832-.6074c1.043-.4932,1.7168-1.5576,1.7168-2.7119v-4.4678h-6v4.4678c0,1.1543,.6738,2.2188,1.7168,2.7119h0Z"/> <path d="M17,10.5859c-.3752-.375-.8838-.5859-1.4143-.5859h-5.5857c-1.1045,0-2,.8955-2,2v14c0,1.1045,.8955,2,2,2h9v-2H10V12h4v4c0,1.1045,.8955,2,2,2h4.2917c.6929,0,1.312-.4136,1.5771-1.0537,.2656-.6406,.1201-1.3711-.3701-1.8613l-4.4988-4.499Zm-1,5.4141v-3.5859l3.5852,3.5859h-3.5852Z"/> <path d="M28,6H16l-3.4141-3.4141c-.3752-.375-.8838-.5859-1.4143-.5859H4c-1.1045,0-2,.8955-2,2V24c0,1.1045,.8955,2,2,2h2v-2H4V4h7.1716l4,4h12.8284v10h2V8c0-1.1045-.8955-2-2-2Z"/> </svg>