Add CalDAV outbox recovery UI

src/govoplan_calendar/backend/manifest.py

@@ -554,6 +554,23 @@ manifest = ModuleManifest(
             related_modules=("connectors", "audit", "ops"),
             metadata={"kind": "reference"},
         ),
+        DocumentationTopic(
+            id="calendar.outbound-change-recovery",
+            title="Recover synchronized calendar writes",
+            summary="Inspect unresolved CalDAV writes and recover only the latest safe resource generation.",
+            body=(
+                "Calendar administrators open Outbound changes from a synchronized calendar's settings. "
+                "The bounded history explains attempts, conflicts, dead work, stale generations, disabled sources, "
+                "and active worker leases. Retry schedules a failed desired state, reconcile compares it with the "
+                "remote resource, and discard abandons the local desired state after a separate warning so the next "
+                "full sync can accept remote. Automatic dispatch and due-source execution remain service-account-only "
+                "worker operations and are not exposed as interactive controls."
+            ),
+            documentation_types=("admin", "user"),
+            audience=("calendar_manager", "operator", "tenant_admin"),
+            related_modules=("ops", "audit"),
+            metadata={"kind": "runbook"},
+        ),
     ),
     capability_factories={
         CAPABILITY_CALENDAR_OUTBOX: _calendar_outbox_provider,