feat: harden shared platform contracts

webui/src/index.ts

@@ -1,6 +1,7 @@
 export * from "./types";
 
 export * from "./api/client";
+export * from "./api/concurrency";
 export * from "./api/auth";
 export * from "./api/platform";
 export * from "./api/notificationSummary";
@@ -55,6 +56,15 @@ export { default as Button } from "./components/Button";
 export type { ButtonProps } from "./components/Button";
 export { default as Card } from "./components/Card";
 export { default as ConfirmDialog } from "./components/ConfirmDialog";
+export {
+  default as ConcurrencyConflictDialog,
+  ConcurrencyConflictProvider,
+  useConcurrencyConflictResolver
+} from "./components/ConcurrencyConflictDialog";
+export type {
+  ConcurrencyResolution,
+  ConcurrencyResolutionRequest
+} from "./components/ConcurrencyConflictDialog";
 export { default as ConnectionTree } from "./components/ConnectionTree";
 export type { ConnectionTreeColumn, ConnectionTreeProps } from "./components/ConnectionTree";
 export { default as ColorPickerField } from "./components/ColorPickerField";