Packrat Backup 0.3.2

Scheduling release: more flexible schedule modes, power/network guards, and tray fixes.

Added

Hourly and custom schedule intervals — backups can now run every hour, or at a custom interval of every N hours or N days counted from a chosen start time (issue #22)
Battery and metered-network guards — optionally defer automatic backups while running on battery or on a metered connection (e.g. mobile data). The backup is delayed, not skipped: it starts automatically once power or an unmetered network returns. Both guards are off by default and configurable on the Schedule page
Single-instance guard — launching Packrat while it's already running in the tray now just activates the existing window instead of spawning a second process

Clicking the tray icon opens the window again — X11 trays send single-click activation, which the tray previously ignored, so right-click → "Open Packrat" was the only way back