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/summary-KPI-mirror.svg

@@ -0,0 +1,11 @@
+<!-- Generator: Adobe Illustrator 26.5.0, SVG Export Plug-In . SVG Version: 6.00 Build 0) -->
+<svg version="1.1" id="icon" x="0px" y="0px" width="32px" height="32px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve">
+<style type="text/css"> .st0{fill:none;}
+</style>
+<path d="M24.3,27.5l5.7-5.1L28.7,21L23,26l-7.7-7.4c-0.7-0.7-1.9-0.7-2.7,0L9,22l-5.6-6L2,17.4l5.6,6c0.8,0.8,2,0.8,2.8,0.1L14,20 l7.7,7.4C22.4,28.2,23.6,28.2,24.3,27.5z"/>
+<polygon points="28,12 28,4 26,4 26,5 24,5 24,7 26,7 26,12 24,12 24,14 30,14 30,12 "/>
+<path d="M22,14h-6v-4c0-1.1,0.9-2,2-2h2V6h-4V4h4c1.1,0,2,0.9,2,2v2c0,1.1-0.9,2-2,2h-2v2h4V14z"/>
+<path d="M12,4H8v2h4v2H9v2h3v2H8v2h4c1.1,0,2-0.9,2-2V6C14,4.9,13.1,4,12,4z"/>
+<polygon points="6,11 2,11 4,8 "/>
+<rect id="_x3C_Transparent_Rectangle_x3E__363_" class="st0" width="32" height="32"/>
+</svg>