v3.0.39-beta — Theme, API, Performance, Calendar

🧪 v3.0.39-beta

🎨 Theme Live Update

Settings → Appearance now applies immediately when switching Light/Dark mode. Previously only took effect after closing settings.

🔌 API Test Fixed

• Removed wrong /bot/public/ prefix from ping URL — now matches production path
• Accepts HTTP 401 as reachable (endpoint requires API token, 401 = server is up)

⚡ Batch Processing Performance

• prescan_oldest_date() moved to background thread — UI no longer freezes during auto-detect scan of large files

📅 ExRate Date Range Picker

• New Date Range section in ExRate dialog with auto/manual toggle
• Auto: uses current year (Jan 1 → today)
• Manual: select Start/End with Year + Month + Day combo boxes
• Date range flows through to both standard and custom currency paths

Full Changelog: v3.0.38...v3.0.39