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/message-queue.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M28,28H4a2.0021,2.0021,0,0,1-2-2V21H4v5H28V21h2v5A2.0021,2.0021,0,0,1,28,28Z" transform="translate(0 0)"/> <rect x="7" y="21" width="18" height="2"/> <rect x="7" y="16" width="18" height="2"/> <rect x="7" y="11" width="18" height="2"/> <rect x="7" y="6" width="18" height="2"/> </svg>