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/generate--ai.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 29.1.0, SVG Export Plug-In . SVG Version: 9.03 Build 55587)  -->
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve">
+<path id="generate--ai_00000179634433971771669990000014740701677312294027_" d="M16.424,21.001l-0.98-2.886h-3.95l-0.98,2.886
+	h-1.19l3.418-9.777h1.499l3.418,9.777H16.424z M13.497,12.316h-0.07l-1.653,4.762h3.376L13.497,12.316z M18.814,21.001v-0.98h1.373
+	v-7.816h-1.373v-0.98h3.922v0.98h-1.373v7.816h1.373v0.98H18.814z M30,30.36H2c-0.199,0-0.36-0.161-0.36-0.36V2
+	c0-0.199,0.161-0.36,0.36-0.36h12v0.72H2.36v27.28h27.28V18h0.721v12C30.36,30.199,30.199,30.36,30,30.36z M30.36,14h-0.72v-2h0.721
+	L30.36,14L30.36,14z M26.36,10h-0.72V6.36H22V5.64h3.64V2h0.721v3.64H30v0.72h-3.64V10z M20,2.36h-2V1.64h2V2.36z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>