[ImgBot] Optimize images

*Total -- 887.02kb -> 692.94kb (21.88%)

/packages/mcp-server/assets/architecture.png -- 276.17kb -> 171.13kb (38.04%)
/packages/mcp-server/assets/banner.png -- 232.17kb -> 158.33kb (31.8%)
/packages/mcp-server/assets/icon.png -- 3.50kb -> 2.98kb (14.99%)
/packages/extension/images/icon.png -- 3.50kb -> 2.98kb (14.99%)
/packages/extension/images/gallery-banner.png -- 371.67kb -> 357.53kb (3.81%)

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Author: ImgBotApp