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/disable-step.svg

@@ -0,0 +1,2 @@
+<svg id="icon" width="32" height="32" version="1.1" viewBox="0 0 32 32"> <!-- Generator: Adobe Illustrator 30.2.1, SVG Export Plug-In . SVG Version: 2.1.1 Build 1) --> <path d="M29,12H3c-.55,0-1-.45-1-1V3c0-.55.45-1,1-1h26c.55,0,1,.45,1,1v8c0,.55-.45,1-1,1ZM4,4v6h24v-6H4ZM16,22H4v-6h24v1h2v-2c0-.55-.45-1-1-1H3c-.55,0-1,.45-1,1v8c0,.55.45,1,1,1h13v-2ZM29.8447,25.3754c.9845-4.3565-2.8635-8.2045-7.2201-7.2201-2.1983.4968-3.9725,2.271-4.4692,4.4692-.9845,4.3565,2.8635,8.2045,7.2201,7.2201,2.1983-.4968,3.9725-2.271,4.4692-4.4692ZM28,24c0,.7-.2,1.4-.6,2l-5.5-5.5c.6-.4,1.3-.6,2-.6,2.2,0,4.1,1.9,4.1,4.1h0ZM20,24c0-.7.2-1.4.6-2l5.5,5.5c-.6.4-1.3.6-2,.6-2.2,0-4.1-1.9-4.1-4.1h0Z"/> <rect id="__x3C_Transparent_Rectangle_x3E_" class="st0" width="32" height="32"/>
+</svg>