feat: add desktop LAN access setting

packages/ui/src/lib/desktop.ts

@@ -50,6 +50,7 @@ export type DesktopSettings = {
   homeDirectory?: string;
   // Optional absolute path to `opencode` binary.
   opencodeBinary?: string;
+  desktopLanAccessEnabled?: boolean;
   projects?: ProjectEntry[];
   activeProjectId?: string;
   approvedDirectories?: string[];
@@ -479,6 +480,21 @@ export const restartDesktopApp = async (): Promise<boolean> => {
   }
 };
 
+export const getDesktopLanAddress = async (): Promise<string | null> => {
+  if (!isTauriShell() || !isDesktopLocalOriginActive()) {
+    return null;
+  }
+
+  try {
+    const tauri = (window as unknown as { __TAURI__?: TauriGlobal }).__TAURI__;
+    const result = await tauri?.core?.invoke?.('desktop_get_lan_address');
+    return typeof result === 'string' && result.trim().length > 0 ? result.trim() : null;
+  } catch (error) {
+    console.warn('Failed to get desktop LAN address (tauri)', error);
+    return null;
+  }
+};
+
 export const openDesktopPath = async (path: string, app?: string | null): Promise<boolean> => {
   if (!isTauriShell() || !isDesktopLocalOriginActive()) {
     return false;

packages/ui/src/lib/persistence.ts

@@ -519,6 +519,9 @@ const sanitizeWebSettings = (payload: unknown): DesktopSettings | null => {
     const trimmed = candidate.opencodeBinary.trim();
     result.opencodeBinary = trimmed.length > 0 ? trimmed : undefined;
   }
+  if (typeof candidate.desktopLanAccessEnabled === 'boolean') {
+    result.desktopLanAccessEnabled = candidate.desktopLanAccessEnabled;
+  }
 
   const projects = sanitizeProjects(candidate.projects);
   if (projects) {