Query field values for host and unit (unit narrowed by the selected hosts), with multi-select and All = *, and filter the panel with in().

debugLevel 0 still maps to Info, so reconnect, MTU and path-revalidation messages flood journald. RUST_LOG has to be target-scoped: -d 0 sets the global directive and replaces a bare RUST_LOG=warn.

HTTP service rendering wallpapers on demand for a location, variant,
overlay and size. Renders stay fresh for 10 minutes; ones that were
picked up are re-rendered in the background when they go stale.
realwallpaper gains --cache-dir so locations share one data cache, and
its cache cleanup now tracks last use instead of fetch time.