v0.283.0: apps go off-site by themselves (decision 50) with a size warning; a Stop holds during a backup (R-721); page slips (R-724/R-725)

Red-proofs RP31-RP38. MinAgent 0.131.0 (unchanged).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/settings/settings.go

@@ -182,6 +182,9 @@ type Settings struct {
 
 	// Per-app backup preferences
 	AppBackup map[string]AppBackupPrefs `json:"app_backup,omitempty"`
+	// OffboxOfferDismissed (decision 50): the household answered „Nem most" to the one-press offer that
+	// switches off-site on for apps installed before v0.283.0. The offer is shown once, not forever.
+	OffboxOfferDismissed bool `json:"offbox_offer_dismissed,omitempty"`
 
 	// OffsiteDataAt (v0.275.0, R-696) — per app, the DATA time of the recovery unit this box last pushed
 	// off-site, and when. An off-site snapshot's own time is when it was TAKEN; a run whose dump leg failed