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/mac-command.svg

@@ -0,0 +1 @@
+<svg id="icon" viewBox="0 0 32 32"><title>mac-command</title><path d="M24,13a4,4,0,0,0,4-4V8a4,4,0,0,0-4-4H23a4,4,0,0,0-4,4v3H13V8A4,4,0,0,0,9,4H8A4,4,0,0,0,4,8V9a4,4,0,0,0,4,4h3v6H8a4,4,0,0,0-4,4v1a4,4,0,0,0,4,4H9a4,4,0,0,0,4-4V21h6v3a4,4,0,0,0,4,4h1a4,4,0,0,0,4-4V23a4,4,0,0,0-4-4H21V13ZM21,8a2,2,0,0,1,2-2h1a2,2,0,0,1,2,2V9a2,2,0,0,1-2,2H21ZM8,11A2,2,0,0,1,6,9V8A2,2,0,0,1,8,6H9a2,2,0,0,1,2,2v3H8Zm3,13a2,2,0,0,1-2,2H8a2,2,0,0,1-2-2V23a2,2,0,0,1,2-2h3Zm8-5H13V13h6Zm2,2h3a2,2,0,0,1,2,2v1a2,2,0,0,1-2,2H23a2,2,0,0,1-2-2Z"/></svg>