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/web/i18n_parity_test.go

@@ -356,6 +356,18 @@ func i18nCases() []i18nCase {
 		d["SignupNative"], d["SignupNativeFailed"] = true, true
 		return d
 	}})
+	// v0.283.0 (decision 50): the one-press off-site offer on both backup pages, and the size card.
+	base = append(base, i18nCase{"backups_remote_offsite_offer_fit", "backups_remote", func() map[string]interface{} {
+		return i18nRemoteData(func(d, o m) {
+			d["EscrowAgentOK"] = true
+			d["OffboxOfferCount"] = 2
+			d["OffsiteFitTotal"], d["OffsiteFitQuota"], d["OffsiteFitTop"] = "130.0 GB", 100, "Immich (95.0 GB), Nextcloud (34.0 GB)"
+		})
+	}}, i18nCase{"backups_apps_offsite_offer", "backups_apps", func() map[string]interface{} {
+		d := i18nAppsData("ok", false, true, "dumps")
+		d["OffboxOfferCount"] = 2
+		return d
+	}})
 	base = append(base, i18nCase{"app_info_known_login_changed", "app_info", func() map[string]interface{} {
 		d := i18nLayoutData("stacks", "Calibre-Web")
 		st := stacks.Stack{Name: "calibre-web", Deployed: true, State: stacks.StateRunning}