Check purchased state when service is launched

Connection state is queried when purchased state is loaded and
it's purchased user.

fix brave/brave-browser#22677
fix brave/brave-browser#22726
fix brave/brave-browser#23080

components/brave_vpn/brave_vpn_service.cc

@@ -136,6 +136,8 @@ BraveVpnService::BraveVpnService(
   observed_.Observe(GetBraveVPNConnectionAPI());
 
   GetBraveVPNConnectionAPI()->set_target_vpn_entry_name(kBraveVPNEntryName);
+
+  LoadPurchasedState();
 }
 #endif
 
@@ -227,6 +229,12 @@ void BraveVpnService::UpdateAndNotifyConnectionStateChange(
           << state;
 
   connection_state_ = state;
+
+  // Don't need to notify connection state change for non purchased state.
+  // This can be happened when user controls vpn settings via os.
+  if (!is_purchased_user())
+    return;
+
   for (const auto& obs : observers_)
     obs->OnConnectionStateChanged(connection_state_);
 }