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/upstream.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <path d="m10,24c0,3.3137,2.6863,6,6,6s6-2.6863,6-6-2.6863-6-6-6-6,2.6863-6,6Zm2,0c0-2.2056,1.7944-4,4-4s4,1.7944,4,4-1.7944,4-4,4-4-1.7944-4-4Z"/> <path d="m30,5c0-1.6567-1.3433-3-3-3s-3,1.3433-3,3c0,1.3042.8374,2.4028,2,2.8164v5.1836c0,1.7217-.752,3.3438-2,4.4673v-2.4673h-2v6h6v-2h-2.7168c1.6938-1.4995,2.7168-3.6816,2.7168-6v-5.1836c1.1626-.4136,2-1.5122,2-2.8164Zm-3,1c-.5522,0-1-.4478-1-1s.4478-1,1-1,1,.4478,1,1-.4478,1-1,1Z"/> <path d="m18.586,11.5859l-1.5859,1.5859v-5.3555c1.1626-.4136,2-1.5122,2-2.8164,0-1.6567-1.3433-3-3-3s-3,1.3433-3,3c0,1.3042.8374,2.4028,2,2.8164v5.3555l-1.5859-1.5859-1.4141,1.4141,4,4,4-4-1.4141-1.4141Zm-2.5859-7.5859c.5522,0,1,.4478,1,1s-.4478,1-1,1-1-.4478-1-1,.4478-1,1-1Z"/> <path d="m8,15v2.4673c-1.248-1.1235-2-2.7456-2-4.4673v-5.1836c1.1626-.4136,2-1.5122,2-2.8164,0-1.6567-1.3433-3-3-3s-3,1.3433-3,3c0,1.3042.8374,2.4028,2,2.8164v5.1836c0,2.3184,1.0229,4.5005,2.7168,6h-2.7168v2h6v-6h-2Zm-3-11c.5522,0,1,.4478,1,1s-.4478,1-1,1-1-.4478-1-1,.4478-1,1-1Z"/> </svg>