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/snow-blizzard.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>snow--blizzard</title><rect x="13" y="10" width="2" height="2"/><rect x="15" y="12" width="2" height="2"/><rect x="17" y="14" width="2" height="2"/><rect x="17" y="10" width="2" height="2"/><rect x="13" y="14" width="2" height="2"/><rect x="3" y="26" width="2" height="2"/><rect x="5" y="28" width="2" height="2"/><rect x="7" y="30" width="2" height="2"/><rect x="7" y="26" width="2" height="2"/><rect x="3" y="30" width="2" height="2"/><rect x="23" y="26" width="2" height="2"/><rect x="25" y="28" width="2" height="2"/><rect x="27" y="30" width="2" height="2"/><rect x="27" y="26" width="2" height="2"/><rect x="23" y="30" width="2" height="2"/><rect x="8" y="18" width="2" height="2"/><rect x="10" y="20" width="2" height="2"/><rect x="12" y="22" width="2" height="2"/><rect x="12" y="18" width="2" height="2"/><rect x="8" y="22" width="2" height="2"/><rect x="18" y="18" width="2" height="2"/><rect x="20" y="20" width="2" height="2"/><rect x="22" y="22" width="2" height="2"/><rect x="22" y="18" width="2" height="2"/><rect x="18" y="22" width="2" height="2"/><rect x="13" y="26" width="2" height="2"/><rect x="15" y="28" width="2" height="2"/><rect x="17" y="30" width="2" height="2"/><rect x="17" y="26" width="2" height="2"/><rect x="13" y="30" width="2" height="2"/><path d="M24.8008,9.1362a8.9943,8.9943,0,0,0-17.6006,0A6.4957,6.4957,0,0,0,6,21.4985v-2.26A4.4943,4.4943,0,0,1,8.144,11.019l.8155-.0639.0991-.812a6.9938,6.9938,0,0,1,13.8838,0l.0986.812.8154.0639A4.4944,4.4944,0,0,1,26,19.2383v2.26A6.4958,6.4958,0,0,0,24.8008,9.1362Z"/></svg>