B2b: decommission orchestration + missing-storage indicator + re-enroll fix (v0.65.0)

agentapi.Decommission + handleStorageDecommission (migrate-all-or-none, Change 2):
migrate-then-decommission via the migration done-hook, or decommission-anyway (stop
apps, keep HDD_PATH). 'Hiányzó tárhely' badge on dashboard/stacks/app card when an
app's drive is decommissioned/disconnected/absent. Change 4: registerStoragePath
clears the decommissioned marker on re-enroll (ClearDecommissioned had no callers).
Non-hollow tests incl. mutation-proven Change-4 companion.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

controller/internal/web/templates/style.css

@@ -1249,6 +1249,13 @@ a.stat-card:hover {
     color: var(--orange);
 }
 
+/* B2b: a deployed app whose data drive was decommissioned/disconnected — distinct warning, not error-spam. */
+.badge-missing-storage {
+    background: var(--orange-bg);
+    color: var(--orange);
+    white-space: nowrap;
+}
+
 /* F5: an unhealthy/restarting deployed app has its public route withheld by Traefik (404 at the URL). */
 .badge-route-unpublished {
     background: var(--orange-bg);