Retire orphaned WebApp tests and classify regression guards

src/modules/core/ModuleReplicator.ts

@@ -145,7 +145,8 @@ export class ModuleReplicator extends AbstractModule {
     }
 
     /**
-     * obsolete method. No longer maintained and will be removed in the future.
+     * Reconciles local chunks when an older IndexedDB client reports that the remote database was cleaned.
+     * This compatibility path remains reachable while those clients can still set `remoteCleaned`.
      * @deprecated v0.24.17
      * @param showMessage If true, show message to the user.
      */

src/modules/core/ModuleReplicator.unit.spec.ts

@@ -116,7 +116,7 @@ describe("ModuleReplicator", () => {
     });
 });
 
-describe("ModuleReplicator legacy cleanup", () => {
+describe("compatibility: cleaned-remote reconciliation for IndexedDB clients", () => {
     it("keeps its finite replication and balancing work inside the shared activity boundary", async () => {
         const activityFinished = vi.fn();
         const runBoundedRemoteActivity = vi.fn(async (task: () => unknown) => {