hcguo-public (amber-forge)

Amber CRT-style skin for DeepSeek Harness: overrides 14 theme tokens and 23 static palette entries, forces a monospace font stack everywhere outside KaTeX math, adds scanlines and a screen vignette, replaces the brand emblem with an inner SVG gear-and-skull mark whose corners are transparent, rewrites the new-session slogan, and raises the agent-preset selector width by 10%.