FileDB on Windows: tray and autostart

Since v2.43 the Windows distribution of FileDB is not just a console filedb.exe but a full desktop setup — still with zero external runtime dependencies.

What's in the box

build-windows.sh builds a single dist/filedb-windows-<arch>/ folder with:

• filedb.exe — the server (console, with the branded icon embedded);
• filedbtray.exe — the system-tray app (built with -H=windowsgui, no console window);
• icon.ico and WINDOWS.md — the manual.

The tray icon

Right-click the icon for the menu: status (● running / ○ stopped), “Open in browser” (the port is read from settings.json), ▶ Start / ⏹ Stop / ⟳ Restart, 📁 pick the databases folder via a native dialog, 📂 open the folder in Explorer, ⚙ open settings.json, 🚀 an autostart toggle, ✕ Quit.

Stopping is graceful, not a kill: the tray sends the child process a console event that the Go runtime turns into SIGTERM — the server exits through the regular http.Server.Shutdown(), flushing the WAL; a hard kill happens only if the process doesn't respond within 10 seconds.

Autostart — four ways

WINDOWS.md documents four options:

1. the “🚀 Autostart” toggle right in the tray menu;
2. a shortcut in shell:startup, manually;
3. Task Scheduler — for a headless server, with automatic restart on failure;
4. the HKCU...Run registry key — for scripted/GPO deployment.

Plus a troubleshooting section for common issues.