First Public Preview

Visual Agent 2026.7.28 Public preview release

• Improved Chalkboard image attachment and vision handling
• Strengthened Vision Model detection to reduce false negatives
• Updated README / agents.md / spec.md and added an English README
• Added quick-start and interface guidance
• Standardized Chalkboard / Browser naming and UI text
• Installer renamed to: Visual-Agent_20260728_x64-setup.exe

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• 修正 Chalkboard 圖片附件與視覺辨識流程
• 強化 Vision Model 判斷，減少誤判
• 補齊 README / agents.md / spec.md，並新增英文 README
• 新增快速使用與介面說明
• 統一 Chalkboard / Browser 命名與 UI 文案
• 安裝檔改名為：Visual-Agent_20260728_x64-setup.exe