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/graphical-data-flow.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <title>graphical-data-flow</title> <path d="M28,30H22a2.0023,2.0023,0,0,1-2-2V22a2.0023,2.0023,0,0,1,2-2h6a2.0023,2.0023,0,0,1,2,2v6A2.0023,2.0023,0,0,1,28,30Zm-6-8h-.0012L22,28h6V22Z"/> <path d="M18,26H12a3.0033,3.0033,0,0,1-3-3V19h2v4a1.001,1.001,0,0,0,1,1h6Z"/> <path d="M26,18H24V15a1.001,1.001,0,0,0-1-1H18V12h5a3.0033,3.0033,0,0,1,3,3Z"/> <path d="M15,18a.9986.9986,0,0,1-.4971-.1323L10,15.2886,5.4968,17.8677a1,1,0,0,1-1.4712-1.0938l1.0618-4.572L2.269,9.1824a1,1,0,0,1,.5662-1.6687l4.2-.7019L9.1006,2.5627a1,1,0,0,1,1.7881-.0214l2.2046,4.271,4.0764.7021a1,1,0,0,1,.5613,1.668l-2.8184,3.02,1.0613,4.5718A1,1,0,0,1,15,18Zm-5-5s.343.18.4971.2686l3.01,1.7241-.7837-3.3763,2.282-2.4453-3.2331-.5569-1.7456-3.382L8.3829,8.6144l-3.3809.565,2.2745,2.437-.7841,3.3763,3.0105-1.7241C9.657,13.18,10,13,10,13Z"/> </svg>