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/succession-flow-connection.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="M7,3v2s-5,0-5,0v-2s5,0,5,0ZM13,16h2s0-5,0-5h-2s0,5,0,5ZM15,5c0-1.1028-.8972-2-2-2h-4v2h4v4h2v-4ZM19,22h-4v-4h-2v4c0,1.1028.8972,2,2,2h4v-2ZM30.6001,22.2002l-8-6c-.303-.2275-.7083-.2642-1.0474-.0947-.3386.1694-.5527.5156-.5527.8945v12c0,.3789.2141.7251.5527.8945.1416.0708.2947.1055.447.1055.2126,0,.4238-.0674.6003-.2002l8-6c.2517-.1885.3999-.4849.3999-.7998s-.1482-.6113-.3999-.7998Z"/> </svg>