A backup is restored at boot, and never undoes a protective act

PrivaPub admin restore <id> (and soon the administrator's page) checks the backup (same host, a format and newest
migration this build reads, every hash) and writes restore.json; the running service sees it within seconds and stops,
and the next start restores it in MaintenanceGate, before migrations, indexes and hosted services: a pre-restore backup
taken once, every collection dropped and imported raw with its indexes, the media the live directory lacks brought
back, then the protective merge from the pre-restore backup. Followers and follows are the live ones; blocks, mutes,
domain blocks, reserved names, tombstones, reports, filters and OAuth applications are the union; deletions win;
accounts made since become tombstones and local posts made since answer 410; every session ends.

Each attempt redoes everything; one refused before any change is abandoned and recorded, one failed midway exits 1 for
systemd to retry, and after three it exits 75, which the unit no longer restarts. Commands wait (exit 75) while a
restore is pending. RestoreRecord tells what happened (admin restore --status).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

PrivaPub/Infrastructure/Backup/ServerBackup.cs

@@ -38,7 +38,8 @@ namespace PrivaPub.Infrastructure.Backup
 			["openiddict.tokens"] = "sessions: a restore ends every one",
 			["openiddict.authorizations"] = "sessions: a restore ends every one",
 			[nameof(MaintenanceLock)] = "who is backing up or restoring now",
-			["AppConfiguration"] = "the configuration's copy holds the SMTP password, and is made again from appsettings at boot"
+			["AppConfiguration"] = "the configuration's copy holds the SMTP password, and is made again from appsettings at boot",
+			[nameof(RestoreRecord)] = "what restores did outlives what they restore"
 		};
 
 		static readonly JsonWriterSettings Json = new() { OutputMode = JsonOutputMode.CanonicalExtendedJson, Indent = false };