v0.318.0: the internal data place, partitions, an honest whole-box backup offer (R-1084), sys_drive never offered (R-1082)

felhom.eu architecture/16 §4-§6 (build B). MinAgent 0.157.0 — the internal place and the partitions appear only when
agent >= 0.158.0 reports them. Tests red-proved; four parity fixtures refreshed (only the new lines).

Claude-Session: https://claude.ai/code/session_012qRErfCoiTkvDK9N5XHbzb

controller/internal/web/i18n_cases_c_test.go

@@ -17,6 +17,10 @@ func i18nStoragePaths() []m {
 			"AppCount": 0, "IsEnrolled": false},
 		{"Path": "/mnt/hdd3", "Label": "HDD három", "IsDefault": false, "Schedulable": true, "IsMounted": true,
 			"DiskInfo": m{"UsedHuman": "10 GB", "TotalHuman": "1 TB", "UsedPercent": 1.0}, "AppCount": 0, "IsEnrolled": true},
+		// v0.318.0 (`16` §5): the internal data place — its one line, and no safe-disconnect or retire button even
+		// where the card would otherwise carry one (IsUSB).
+		{"Path": "/mnt/felhom-drives/belso", "Label": "Belső tárhely", "IsDefault": false, "Schedulable": true, "IsMounted": true,
+			"IsInternal": true, "IsUSB": true, "AppCount": 0, "IsEnrolled": true},
 	}
 }