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/cloud--assets.svg

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 24.1.2, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<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="cloud--assets_1_" d="M16,31.36C7.53,31.36,0.64,24.47,0.64,16S7.53,0.64,16,0.64S31.36,7.53,31.36,16
+	S24.47,31.36,16,31.36z M15.385,30.627c0.204,0.009,0.409,0.013,0.615,0.013c4.741,0,8.963-2.265,11.64-5.77V12.008h0.721v11.831
+	c1.442-2.268,2.279-4.957,2.279-7.839c0-1.999-0.402-3.904-1.13-5.641L18.363,3.924l0.36-0.624l10.249,5.917
+	c-2.174-4.141-6.273-7.119-11.101-7.738L6.723,7.916l-0.36-0.624l10.252-5.919C16.412,1.364,16.206,1.36,16,1.36
+	c-4.741,0-8.963,2.266-11.64,5.771v12.862H3.64V8.161C2.197,10.429,1.36,13.119,1.36,16c0,1.998,0.402,3.903,1.13,5.641
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+</svg>