v2.9.0

Valkey Support, Storage Alert Fix, and Multiple Improvements

✨ Features

• Valkey: Added Valkey as a supported database source. Uses the same RDB backup mechanism as Redis with correct version display.

🐛 Bug Fixes

• storage alerts: Fixed "Missing Backup" alert firing incorrectly when a retention policy keeps the file count stable, making the alert appear even though backups were completing successfully.

🎨 Improvements

• dashboard: The Storage Usage widget now shows the adapter-specific brand icon for each destination (matching the Destinations page) instead of a generic hard drive icon.
• adapter form: The add/edit dialog is now scrollable when configuration fields exceed the available screen height, with action buttons always pinned at the bottom.
• system tasks: Health check log cleanup now runs once a day via the "Clean Old Data" task instead of on every health check run, reducing unnecessary database load.
• system tasks: Removed a redundant hourly storage snapshot cleanup that duplicated the daily "Clean Old Data" cleanup.
• database: The internal SQLite database now runs in WAL mode with a busy timeout, so readers no longer block writers and concurrent writes wait briefly instead of failing instantly with "database is locked". Configurable via the new SQLITE_WAL_MODE environment variable (default: true).

📝 Documentation

• Redis: Updated supported version documentation from 6.x to 2.8+ to reflect actual compatibility.
• installation: Documented the -wal/-shm companion files created by the internal database's WAL mode.

🐳 Docker

• Image: skyfay/dbackup:v2.9.0
• Also tagged as: latest, v2
• CI Image: skyfay/dbackup:ci
• Platforms: linux/amd64, linux/arm64