v0.50.0

✨ Added

• Bot tab with Keke-backed chats: list sessions, start new ones from the sidebar, pick workspace folder via Tauri file dialog, and configure provider/model through the ACP menu.
• Toast deduplication to prevent duplicate notifications stacking up.
• Web server now supports configuring extra CORS origins.
• Local file assets are now served over HTTP through the loopback web server.

🔄 Changed

• Routed all remaining desktop and filesystem calls through the loopback web server.
• Bot conversations are now scoped to each bot individually.
• Bot settings dialog opens automatically after creating a new bot.

🐛 Fixed

• Empty bot sessions no longer accumulate across restarts.
• Fixed close button clipping on toast notifications.
• Dev browser now opens only after the web server actually binds.
• Git diff now detects binary files and skips text diffing for them.
• Removed noVoid lint warnings in BotSessionList.