Stage 11: account linking & merge (email + Telegram Login Widget) (#12)

ui/src/lib/app.svelte.ts

@@ -3,7 +3,7 @@
 // gateway calls funnel through here so errors map to one user-facing toast and an
 // expired session logs out.
 
-import type { Profile, PushEvent, Session } from './model';
+import type { LinkResult, Profile, PushEvent, Session } from './model';
 import { gateway } from './gateway';
 import { GatewayError } from './client';
 import { navigate, router } from './router.svelte';
@@ -129,6 +129,19 @@ async function adoptSession(s: Session): Promise<void> {
   void refreshNotifications();
 }
 
+/**
+ * applyLinkResult applies a completed account link or merge (Stage 11): it adopts a
+ * switched session (a guest initiator whose durable counterpart won, so the active
+ * account changed) or, otherwise, refreshes the current profile in place.
+ */
+export async function applyLinkResult(r: LinkResult): Promise<void> {
+  if (r.session && r.session.token) {
+    await adoptSession(r.session);
+    return;
+  }
+  app.profile = await gateway.profileGet();
+}
+
 export async function bootstrap(): Promise<void> {
   const prefs = await loadPrefs();
   app.theme = prefs.theme ?? 'auto';