V0.45.7

Season and episode refresh now accepts hours instead of days. Native Maintenance supports 1–720 hours. New installations default to six hours; older day settings migrate without silently changing their duration.

The production catalog and season/episode intervals are set to two hours. Refresh remains metadata-only; streams are discovered and probed on demand. Existing artwork is preserved.

Pinned Emby 4.10.0.40 build and all 39 contract checks passed, including XML migration. Install the single Undertow.dll and retain configuration/data.