Make remote daemon update failures actionable (#2120)

* fix(settings): show daemon update failures

React Native web ignores Alert.alert, so failed remote updates reset to an enabled button without any user-visible explanation. Keep updater progress and failure as explicit rendered state, including the daemon's error, and cover the real browser-to-daemon failure path.

* test(settings): harden daemon update regression

* fix(settings): disable Desktop-managed daemon updates

Desktop-bundled daemons advertised npm self-update even though the install-origin checks always rejected it. Report Desktop ownership to clients, render actionable guidance, and refuse stale requests before touching npm.

packages/app/src/stores/session-store.ts

@@ -306,6 +306,7 @@ export interface DaemonServerInfo {
   serverId: string;
   hostname: string | null;
   version: string | null;
+  desktopManaged?: boolean;
   capabilities?: ServerCapabilities;
   features?: ServerInfoStatusPayload["features"];
 }
@@ -591,17 +592,26 @@ function isSessionServerInfoUnchanged(input: {
   currentServerInfo: SessionState["serverInfo"] | undefined;
   nextHostname: string | null;
   nextVersion: string | null;
+  nextDesktopManaged: boolean | undefined;
   nextCapabilities: ServerCapabilities | undefined;
   nextFeatures: ServerInfoStatusPayload["features"] | undefined;
   nextServerId: string;
 }): boolean {
-  const { currentServerInfo, nextHostname, nextVersion, nextCapabilities, nextFeatures } = input;
+  const {
+    currentServerInfo,
+    nextHostname,
+    nextVersion,
+    nextDesktopManaged,
+    nextCapabilities,
+    nextFeatures,
+  } = input;
   const prevHostname = currentServerInfo?.hostname?.trim() || null;
   const prevVersion = currentServerInfo?.version?.trim() || null;
   return (
     currentServerInfo?.serverId === input.nextServerId &&
     prevHostname === nextHostname &&
     prevVersion === nextVersion &&
+    currentServerInfo?.desktopManaged === nextDesktopManaged &&
     areServerCapabilitiesEqual(currentServerInfo?.capabilities, nextCapabilities) &&
     areServerInfoFeaturesEqual(currentServerInfo?.features, nextFeatures)
   );
@@ -721,6 +731,7 @@ export const useSessionStore = create<SessionStore>()(
 
           const nextHostname = info.hostname?.trim() || null;
           const nextVersion = info.version?.trim() || null;
+          const nextDesktopManaged = info.desktopManaged;
           const nextCapabilities = info.capabilities;
           const nextFeatures = info.features;
 
@@ -729,6 +740,7 @@ export const useSessionStore = create<SessionStore>()(
               currentServerInfo: session.serverInfo,
               nextHostname,
               nextVersion,
+              nextDesktopManaged,
               nextCapabilities,
               nextFeatures,
               nextServerId: info.serverId,
@@ -747,6 +759,9 @@ export const useSessionStore = create<SessionStore>()(
                   serverId: info.serverId,
                   hostname: nextHostname,
                   version: nextVersion,
+                  ...(nextDesktopManaged !== undefined
+                    ? { desktopManaged: nextDesktopManaged }
+                    : {}),
                   ...(nextCapabilities ? { capabilities: nextCapabilities } : {}),
                   ...(nextFeatures ? { features: nextFeatures } : {}),
                 },