fix(app): preserve workspace route during desktop refresh

packages/app/src/runtime/host-runtime.ts

@@ -40,6 +40,7 @@ import { replaceFetchedAgentDirectory } from "@/utils/agent-directory-sync";
 import { useSessionStore } from "@/stores/session-store";
 
 export type HostRuntimeConnectionStatus = "idle" | "connecting" | "online" | "offline" | "error";
+export type HostRegistryStatus = "loading" | "ready";
 
 export type ActiveConnection =
   | { type: "directTcp"; endpoint: string; display: string }
@@ -1238,6 +1239,7 @@ export class HostRuntimeStore {
   private version = 0;
   private hostListVersion = 0;
   private hosts: HostProfile[] = [];
+  private hostRegistryStatus: HostRegistryStatus = "loading";
   private deps: HostRuntimeControllerDeps;
   private lastConnectionStatusByServer = new Map<string, HostRuntimeConnectionStatus>();
   private agentDirectoryBootstrapInFlight = new Map<string, Promise<void>>();
@@ -1254,6 +1256,10 @@ export class HostRuntimeStore {
     return this.hosts;
   }
 
+  getHostRegistryStatus(): HostRegistryStatus {
+    return this.hostRegistryStatus;
+  }
+
   subscribeHostList(listener: () => void): () => void {
     this.hostListListeners.add(listener);
     return () => {
@@ -1299,6 +1305,7 @@ export class HostRuntimeStore {
   }
 
   private async loadFromStorage(): Promise<void> {
+    let shouldPersistHosts = false;
     try {
       const stored = await AsyncStorage.getItem(REGISTRY_STORAGE_KEY);
       if (!stored) {
@@ -1314,12 +1321,17 @@ export class HostRuntimeStore {
       const profiles = normalizedProfiles.filter((entry) => !isPlaceholderServerId(entry.serverId));
       this.hosts = profiles;
       this.syncHosts(profiles);
-      this.emitHostList();
       if (profiles.length !== normalizedProfiles.length) {
-        void this.persistHosts();
+        shouldPersistHosts = true;
       }
     } catch (error) {
       console.error("[HostRuntime] Failed to load host registry from storage", error);
+    } finally {
+      this.hostRegistryStatus = "ready";
+      this.emitHostList();
+      if (shouldPersistHosts) {
+        void this.persistHosts();
+      }
     }
   }
 
@@ -2069,6 +2081,15 @@ export function useHosts(): HostProfile[] {
   );
 }
 
+export function useHostRegistryStatus(): HostRegistryStatus {
+  const store = getHostRuntimeStore();
+  return useSyncExternalStore(
+    (onStoreChange) => store.subscribeHostList(onStoreChange),
+    () => store.getHostRegistryStatus(),
+    () => store.getHostRegistryStatus(),
+  );
+}
+
 export interface HostMutations {
   upsertDirectConnection: (input: {
     serverId: string;