Add Daredream Studios datamosh video editor

Self-contained HTML datamosh editor with vaporwave aesthetic.

Features:
- 14 effects: Datamosh, Pixel Sort, Block Shift, Glitch Scan, Chroma Bleed,
  Color Burn, Color Map, Echo Ghost, Motion Xfer, Mirror/Kaleidoscope,
  Wave Warp, Bloom, Databend, Entropy Field
- Multi-source video with per-source trim, speed control, and blend modes
- Clip sequencer with drag-to-cut manual and auto-advance
- BPM tap sync with beat-triggered auto-cut
- MediaRecorder export to .webm
- Keyboard shortcuts: Space/K/R/C/1-4
- Vaporwave UI: retro grid, neon glow, CRT scanlines, animated sun
- Daredream Studios branding throughout
- 12 presets including VAPOR, KALEID, FUSION, DREAMWASH

Author: claude