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/border-left.svg

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+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"> <rect x="-9" y="15" width="26" height="2" transform="translate(-12 20) rotate(-90)"/> <rect x="7" y="27" width="2" height="2" transform="translate(-20 36) rotate(-90)"/> <rect x="11" y="27" width="2" height="2" transform="translate(-16 40) rotate(-90)"/> <rect x="15" y="27" width="2" height="2" transform="translate(-12 44) rotate(-90)"/> <rect x="19" y="27" width="2" height="2" transform="translate(-8 48) rotate(-90)"/> <rect x="23" y="27" width="2" height="2" transform="translate(-4 52) rotate(-90)"/> <rect x="27" y="27" width="2" height="2" transform="translate(0 56) rotate(-90)"/> <rect x="27" y="23" width="2" height="2" transform="translate(4 52) rotate(-90)"/> <rect x="27" y="19" width="2" height="2" transform="translate(8 48) rotate(-90)"/> <rect x="27" y="15" width="2" height="2" transform="translate(12 44) rotate(-90)"/> <rect x="27" y="7" width="2" height="2" transform="translate(20 36) rotate(-90)"/> <rect x="27" y="11" width="2" height="2" transform="translate(16 40) rotate(-90)"/> <rect x="7" y="3" width="2" height="2" transform="translate(4 12) rotate(-90)"/> <rect x="11" y="3" width="2" height="2" transform="translate(8 16) rotate(-90)"/> <rect x="15" y="3" width="2" height="2" transform="translate(12 20) rotate(-90)"/> <rect x="19" y="3" width="2" height="2" transform="translate(16 24) rotate(-90)"/> <rect x="23" y="3" width="2" height="2" transform="translate(20 28) rotate(-90)"/> <rect x="27" y="3" width="2" height="2" transform="translate(24 32) rotate(-90)"/> <rect x="8" y="10" width="10" height="2"/> <rect x="8" y="15" width="6" height="2"/> </svg>