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-pictograms/ibm--bob.svg

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32">
+  <defs>
+    <style>
+      .cls-1 {
+        fill: none;
+      }
+    </style>
+  </defs>
+  <path d="M10.5,19c-.83,0-1.5.67-1.5,1.5s.67,1.5,1.5,1.5,1.5-.67,1.5-1.5-.67-1.5-1.5-1.5ZM21.5,19c-.83,0-1.5.67-1.5,1.5s.67,1.5,1.5,1.5,1.5-.67,1.5-1.5-.67-1.5-1.5-1.5ZM19.68,23.84c-.04.07-.96,1.8-3.68,1.8s-3.64-1.73-3.68-1.8l-.64.32c.04.09,1.13,2.2,4.32,2.2s4.28-2.11,4.32-2.2l-.64-.32ZM28.64,18v6c0,.35-.29.64-.64.64h-1c-.2,0-.36.16-.36.36,0,2.01-1.63,3.64-3.64,3.64h-14c-2.01,0-3.64-1.63-3.64-3.64,0-.2-.16-.36-.36-.36h-1c-.35,0-.64-.29-.64-.64v-6h-.72v6c0,.75.61,1.36,1.36,1.36h.65c.19,2.24,2.0699,4,4.35,4h14c2.28,0,4.16-1.76,4.35-4h.65c.75,0,1.36-.61,1.36-1.36v-6h-.72ZM29.35,15.64c-.16-5.89-4.21-10.9301-9.99-12.42v-1.22c0-.2-.16-.36-.36-.36h-6c-.2,0-.36.16-.36.36v1.22C6.86,4.71,2.81,9.75,2.65,15.64h-1.65v.72h30v-.72h-1.65ZM3.37,15.64c.15-5.5,3.9-10.21,9.27-11.67v8.03h.72V2.36h5.28v9.64h.72V3.97c5.37,1.46,9.12,6.17,9.27,11.67H3.37Z"/>
+  <rect id="Transparent_Rectangle" data-name="Transparent Rectangle" class="cls-1" width="32" height="32"/>
+</svg>