Task Status Center: save progress

frontend/src/lib/components/layout/TopNavbar.svelte

@@ -109,17 +109,22 @@
     hasPermission(user, "admin:settings", "READ"),
   );
   let globalEnvironments = $derived(
-    environmentContextStore.value?.environments || [],
+    $environmentContextStore?.environments || [],
   );
   let globalSelectedEnvId = $derived(
-    environmentContextStore.value?.selectedEnvId || "",
+    $environmentContextStore?.selectedEnvId || "",
   );
-  let globalSelectedEnv = $derived(selectedEnvironmentStore.value);
+  let globalSelectedEnv = $derived($selectedEnvironmentStore);
+  let selectedEnvironmentValue = $state("");
   let isProdContext = $derived(
     String(globalSelectedEnv?.stage || "").toUpperCase() === "PROD" ||
       Boolean(globalSelectedEnv?.is_production),
   );
 
+  $effect(() => {
+    selectedEnvironmentValue = globalSelectedEnvId;
+  });
+
   function toggleUserMenu(event) {
     event.stopPropagation();
     showUserMenu = !showUserMenu;
@@ -187,7 +192,9 @@
   }
 
   function handleGlobalEnvironmentChange(event) {
-    setSelectedEnvironment(event.target.value);
+    const nextEnvId = event.currentTarget.value;
+    selectedEnvironmentValue = nextEnvId;
+    setSelectedEnvironment(nextEnvId);
     if (searchQuery.trim().length >= SEARCH_MIN_LENGTH) {
       triggerSearch(searchQuery.trim());
     }
@@ -479,7 +486,7 @@
             {isProdContext
             ? 'border-destructive-ring bg-destructive-light text-destructive focus:ring-destructive-ring'
             : 'border-border-strong bg-surface-card text-text focus:ring-sky-200'}"
-          value={globalSelectedEnvId}
+          bind:value={selectedEnvironmentValue}
           onchange={handleGlobalEnvironmentChange}
           aria-label={$t.dashboard?.environment || "Environment"}
           title={$t.dashboard?.environment || "Environment"}

frontend/src/lib/models/AgentChatModel.svelte.ts

@@ -108,9 +108,9 @@ export class AgentChatModel {
   _userCancelled: boolean = $state(false);
   /** Populated by file_uploaded metadata — attached to user message on stream end. */
   _pendingAttachment: { file_name: string; file_path: string; file_size: number } | null = $state(null);
-  userId: string = "";
-  userJwt: string = "";
-  envId: string = "";
+  userId: string = $state("");
+  userJwt: string = $state("");
+  envId: string = $state("");
 
   // ── Private fields ─────────────────────────────────────────────
   _client: GradioClient | null = null; // non-private for legacy Object.assign usage

frontend/src/routes/+layout.svelte

@@ -42,8 +42,8 @@
 
     let isLoginPage = $derived(page.url.pathname === '/login');
     let isExpanded = $derived(sidebarStore.value?.isExpanded ?? true);
-    let isProductionContext = $derived(isProductionContextStore.value);
-    let selectedEnvironment = $derived(selectedEnvironmentStore.value);
+    let isProductionContext = $derived($isProductionContextStore);
+    let selectedEnvironment = $derived($selectedEnvironmentStore);
 </script>
 
 <Toast />

frontend/src/routes/agent/+page.svelte

@@ -26,18 +26,22 @@
   // $auth is Svelte auto-subscription syntax for stores with .subscribe()
   let currentUserId = $derived($auth.user?.id ?? "");
   let currentUserJwt = $derived($auth.token ?? "");
+  let currentEnvironmentId = $derived(
+    $environmentContextStore?.selectedEnvId || (browser ? localStorage.getItem("selected_env_id") || "" : ""),
+  );
   // Guard against double initialization in dev HMR
   let _initialized = false;
 
   // Sync model with reactive values before each send
-  function syncModel(m: AgentChatModel): void {
+  function syncModel(m: AgentChatModel, envId: string = currentEnvironmentId): void {
     m.userId = $auth.user?.id ?? "";
     m.userJwt = $auth.token ?? "";
-    m.envId = environmentContextStore.value?.selectedEnvId || (browser ? localStorage.getItem("selected_env_id") || "" : "");
+    m.envId = envId;
   }
 
   $effect(() => {
-    if (model) syncModel(model);
+    const envId = currentEnvironmentId;
+    if (model) syncModel(model, envId);
   });
 
   onMount(() => {
@@ -47,6 +51,9 @@
     const m = new AgentChatModel();
     m.onBeforeSend = () => syncModel(m);
     syncModel(m);
+    const unsubscribeEnvironment = environmentContextStore.subscribe((state) => {
+      syncModel(m, state?.selectedEnvId || (browser ? localStorage.getItem("selected_env_id") || "" : ""));
+    });
     const desktopQuery = window.matchMedia("(min-width: 768px)");
     const syncSidebarForViewport = (matches: boolean) => {
       m.setConversationSidebarOpen(matches);
@@ -71,6 +78,7 @@
     });
 
     return () => {
+      unsubscribeEnvironment();
       desktopQuery.removeEventListener("change", handleViewportChange);
       _initialized = false;
     };