Skyfay/DBackup v2.9.0 on GitHub

Valkey Support, Storage Alert Fix, and Multiple Improvements

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

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.

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).

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.