feat: migrate account usage to CLIProxyAPI

backend/internal/app/reminder_test.go

@@ -367,6 +367,13 @@ func reminderDashboard(fetchedAt int64, used float64, resetsAt int64) Dashboard
 	}
 }
 
+func ensureReminderAccount(t *testing.T, a *App) {
+	t.Helper()
+	if _, err := a.store.CreateAccount("测试账号", "test-auth"); err != nil {
+		t.Fatal(err)
+	}
+}
+
 func notificationCount(t *testing.T, a *App) int {
 	t.Helper()
 	var count int
@@ -378,6 +385,7 @@ func notificationCount(t *testing.T, a *App) int {
 
 func TestStoreLimitSnapshotsDetectsEarlyReset(t *testing.T) {
 	a := newReminderTestApp(t)
+	ensureReminderAccount(t, a)
 	now := time.Now().Unix()
 	if detected, err := a.storeLimitSnapshots(reminderDashboard(now, 42, now+3600)); err != nil || detected {
 		t.Fatalf("initial snapshot: detected=%v err=%v", detected, err)
@@ -433,6 +441,7 @@ func TestLegacyNotificationFormatting(t *testing.T) {
 
 func TestStoreLimitSnapshotsUsesScheduledAfterDedupeKey(t *testing.T) {
 	a := newReminderTestApp(t)
+	ensureReminderAccount(t, a)
 	now := time.Now().Unix()
 	resetAt := now + 30
 	_, _ = a.storeLimitSnapshots(reminderDashboard(now, 70, resetAt))
@@ -466,6 +475,7 @@ func TestStoreLimitSnapshotsIgnoresNonResetChanges(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			a := newReminderTestApp(t)
+			ensureReminderAccount(t, a)
 			g := defaults()
 			g.NotifyAfter = tt.notifyAfter
 			if err := a.store.SetJSON("general", g); err != nil {