Denial is not absence — detection learns the unverifiable answer 06 ruled for it

Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy

Kanban/UI/Board/BoardSettingsSheet.swift

@@ -159,6 +159,13 @@ enum BoardSettingsSection: String, Equatable, CaseIterable, Identifiable {
             // level up — so the popover's prose stands and this surface simply does not exist for
             // such a board.
             return []
+        case .unverifiable:
+            // **Structurally the same emptiness as `.repoNested`, for the same reason** (06 ▸ Rules ▸
+            // Detection, "Denial is not absence"): a denied ancestor check can never be told apart
+            // from a repository actually being there, so add-git stays unreachable and this surface
+            // does not exist for such a board either. Only the popover's *prose* tells the two apart
+            // — this inventory does not, because the sheet has nothing to set up on either.
+            return []
         }
     }
 }