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/sustainability.svg

@@ -0,0 +1,2 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="m21.5708,27.7495c-1.7468.8296-3.6211,1.2505-5.5708,1.2505-7.1682,0-13-5.832-13-13,0-3.0752,1.0571-5.979,3-8.3076v2.3076h2v-6H2v2h2.8416c-2.4753,2.7539-3.8416,6.2622-3.8416,10,0,8.271,6.729,15,15,15,2.249,0,4.4119-.4858,6.4292-1.4438l-.8584-1.8066Z"/> <path d="m21,9c-3.1602,0-5.7515,2.457-5.9778,5.5605-1.0654-.9658-2.4739-1.5605-4.0222-1.5605h-4v4c0,3.3086,2.6917,6,6,6h2v4h2v-8.0005l2,.0005c3.3083,0,6-2.6914,6-6v-4h-4Zm-8,12c-2.2056,0-4-1.7944-4-4v-2h2c2.2056,0,4,1.7944,4,4v.5859l-2.293-2.293-1.4141,1.4141,2.293,2.293h-.5859Zm10-8c0,2.2056-1.7944,4-4,4h-.5859l2.293-2.293-1.4141-1.4141-2.293,2.293v-.5859c0-2.2056,1.7944-4,4-4h2v2Z"/> <path d="m31,16c0-8.271-6.729-15-15-15-2.249,0-4.4119.4858-6.4292,1.4438l.8584,1.8066c1.7468-.8296,3.6211-1.2505,5.5708-1.2505,7.1682,0,13,5.832,13,13,0,3.0752-1.0571,5.979-3,8.3076v-2.3076h-2v6h6v-2h-2.8416c2.4753-2.7539,3.8416-6.2622,3.8416-10Z"/> <g id="_Transparent_Rectangle_" data-name="&amp;lt;Transparent Rectangle&amp;gt;"> <rect class="cls-1" width="32" height="32"/> </g>
+</svg>