controller v0.67.5: startup recreate waits for stack scan

recreateBootStaleApps ran before the stack manager finished scanning (GetStacks
empty) so it found no apps; add a bounded wait for stacks before the one-time
boot-stale recreate. Deterministic guest-reboot convergence.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

controller/internal/web/intermediary.go

@@ -203,6 +203,14 @@ func (s *Server) ReconcileDriveGates() {
 // startup recreate (see recreateBootStaleApps) to converge a guest reboot deterministically, then the
 // periodic gate.
 func (s *Server) driveGateLoop() {
+	// Wait for the stack scan to complete (GetStacks empty at NewServer time) and the agent to come up,
+	// so the one-time boot-stale recreate sees the real deployed apps + drive state. Bounded poll.
+	for i := 0; i < 30; i++ {
+		if s.stackMgr != nil && len(s.stackMgr.GetStacks()) > 0 {
+			break
+		}
+		time.Sleep(time.Second)
+	}
 	s.recreateBootStaleApps()
 	s.ReconcileDriveGates()
 	t := time.NewTicker(30 * time.Second)