Avalon Screener v0.5.5

- Stable Scout endpoint remains HTTPS: https://176-12-71-79.sslip.io (no Quick Tunnel).
- Network sender no longer parks permanently after repeated timeouts; it keeps retrying with backoff and resumes automatically when connectivity returns.
- Discord bearer token remains stored with Windows DPAPI in auth.dat and has no client expiry.
- Discord display name is persisted separately; restarting Screener no longer makes a valid binding look unlinked.
- Linked-account button is now "СМЕНИТЬ DISCORD / CHANGE DISCORD"; re-authentication is only for an intentional account change.
- Upload and OCR processing remain separate: once upload succeeds, Screener waits for server processing confirmation instead of treating OCR time as upload time.
- F8/F9 capture geometry and source-resolution profiles are unchanged.
- Backend production fix is already deployed separately for split Open World SOURCE names (e.g. Flammog + Valley) and faster fixed-crop OCR.
