fix(desktop): open cron-run transcripts stay live

Reimplements PR #89728 on top of the ownerRoute rework. The active
transcript resolver only looked in $sessions and $messagingSessions, so an
open cron-run transcript resolved to nothing and every sessions.changed
tick was dropped — the pane froze until the user reopened it. Resolve
through ownerLookupSessionRows() (recents + cron + messaging) instead.

Co-authored-by: fangliquanflq <fangliquan@qq.com>

apps/desktop/src/app/contrib/hooks/use-background-sync.test.ts

@@ -8,6 +8,7 @@ import {
   $activeSessionId,
   $selectedStoredSessionId,
   setBusy,
+  setCronSessions,
   setMessagingSessions,
   setSessionOwnerHint,
   setSessions
@@ -155,6 +156,7 @@ afterEach(() => {
   $activeSessionId.set(null)
   $selectedStoredSessionId.set(null)
   setSessions([])
+  setCronSessions([])
   setMessagingSessions([])
   setBusy(false)
   vi.clearAllMocks()
@@ -555,6 +557,19 @@ describe('reconcileActiveTranscript', () => {
     })
   })
 
+  it('resolves and hydrates a cron session from the cron sessions store', async () => {
+    setCronSessions([{ id: ACTIVE_STORED_ID, profile: 'cron-profile', source: 'cron' } as never])
+    const fixture = makeRefresh(resolveActiveTranscriptSession)
+    vi.mocked(getLatestSessionMessages).mockResolvedValue(transcript('cron progress') as never)
+
+    await fixture.refresh()
+
+    expect(getLatestSessionMessages).toHaveBeenCalledWith(ACTIVE_STORED_ID, 'cron-profile')
+    expect(fixture.states.get(ACTIVE_RUNTIME_ID)?.messages.at(-1)?.parts[0]).toMatchObject({
+      text: 'cron progress'
+    })
+  })
+
   it('fails closed when a hidden session id has multiple owner hints', async () => {
     const ambiguousStoredSessionId = 'ambiguous-hidden-chat'
     setSessionOwnerHint(ambiguousStoredSessionId, {

apps/desktop/src/app/contrib/hooks/use-background-sync.ts

@@ -13,10 +13,9 @@ import {
   $activeSessionId,
   $busy,
   $currentCwd,
-  $messagingSessions,
   $selectedStoredSessionId,
-  $sessions,
   getSessionOwnerHint,
+  ownerLookupSessionRows,
   sessionMatchesStoredId,
   setCurrentCwd
 } from '@/store/session'
@@ -39,9 +38,7 @@ interface ActiveTranscriptSession {
 
 /** Resolve an active transcript from visible rows or its unique hidden owner. */
 export function resolveActiveTranscriptSession(storedSessionId: string): ActiveTranscriptSession | undefined {
-  const visible =
-    $sessions.get().find(session => sessionMatchesStoredId(session, storedSessionId)) ??
-    $messagingSessions.get().find(session => sessionMatchesStoredId(session, storedSessionId))
+  const visible = ownerLookupSessionRows().find(session => sessionMatchesStoredId(session, storedSessionId))
 
   if (visible) {
     return { profile: visible.profile }