🧛 Dracula theme for DeepSeek Harness (DSH)

Key features

• Two faithful variants built from the official Dracula palette
• Dracula — the classic #282a36 canvas
• Dracula Soft — the gentler #343746 background
• Core logic adopted from the official Dracula DeepSeek port (MIT): the canvas/brand --dsw-static- overrides and code-highlight palette are taken verbatim and translated into the DSH theme runtime.
• On top of that, full token coverage: neutral & canvas ramps, brand (purple), blue (cyan), red / green / amber state colors, alias surfaces, component-specific tokens (sidebar, bubbles, composer, menus) and the official Dracula syntax colors for code highlighting (--shiki-).