dsh-fgo-chaldea: An FGO Chaldea-Style DeepSeek Harness Web UI Skin

`dsh-fgo-chaldea` is a plugin that provides a Chaldea-style visual skin for DeepSeek Harness. Using the official API, it implements multi-theme color schemes, procedurally generated star map backgrounds, and gold engraved-line decorations, and offers five preset skins with local storage memory and accessibility animation settings. It does not include any official FGO assets, serving only as a style reference. It is compatible with version 0.1.0-rc.6 and above, and can be enabled through settings after installation.