style: pure black docsite theme, no green tint

- Background: #000000 (pure black, was #0a1a0f swamp green)
- Surface: #0a0a0a (neutral, was #0f1f14 green-tinted)
- Links: #a3a3a3 grey, hover white (no green links)
- Primary accent: #4ade80 (muted green, only for card headers)
- All card/table backgrounds: rgba white at 2-3% opacity
- No shadows, no glows, no animations
- Zero green tint anywhere in backgrounds

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: gHashTag