Introduce a manual-release reservation hold on station state so auto slot activation is suppressed for the current reserved user until the reservation window ends or is removed. Clear the hold on activation/reservation updates and backfill missing hold fields for existing station state files.
Stop auto-activating reservation slots immediately after a manual station release. This ensures the 'Station deaktivieren' action actually leaves the station deactivated, while reservation ownership remains intact until the user deletes the reservation.
Add the reusable RMS core application (server, web UI, plugins, tests, tools) with generic defaults, GPL licensing, and maintainer context documentation so deployments can consume this repo as software source independent of station-specific overlays.
