fix(touch): show the joystick and skill buttons only in the game phase

The controls keyed off CPythonBackground's warp map name, which the
loading window sets before the game window exists, so the loading screen
already showed them. Also require CPythonNetworkStream's phase to be
"Game" (PORT_IsGamePhase, exposed as PythonBoot::InGamePhase).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/port/port_login_flow_test.cpp

@@ -306,6 +306,7 @@ int main(int argc, char** argv)
 		                    py_true("isinstance(_stream.curPhaseWindow, introSelect.SelectCharacterWindow)"));
 	});
 	CHECK(selecting && !failed());
+	CHECK(!PythonBoot::InGamePhase());
 	if (!selecting)
 	{
 		// The login window reports failures in its popup (LOGIN_FAILURE, connect errors).
@@ -392,6 +393,9 @@ int main(int argc, char** argv)
 		});
 		CHECK(loading && !failed());
 		CHECK(py_true(loaded));
+		// The loading window already warped the map; the touch host's joystick and skill buttons wait for
+		// the game phase.
+		CHECK(!PythonBoot::InGamePhase() && !PythonBoot::CurrentMapName().empty());
 
 		// 6. introLoading's update steps end in net.StartGame(); the next CPythonNetworkStream::Process calls
 		//    networkModule's SetGamePhase, which builds game.GameWindow (interfaceModule.MakeInterface) and
@@ -402,6 +406,8 @@ int main(int argc, char** argv)
 			return failed() || (py_true(gaming) && (!server || server->Has("game2:entergame")));
 		});
 		CHECK(entered && !failed());
+		// CG_ENTERGAME's PHASE_GAME answer switches the stream to "Game" a round trip after the window opens.
+		CHECK(pump_until(5, [] { return PythonBoot::InGamePhase(); }) && !PythonBoot::CurrentMapName().empty());
 
 		// 7. (批次 2V2-b) The server answers CG_ENTERGAME with the character's own insert packets and
 		//    PHASE_GAME, then the Entergame burst (PVP/land list, time, channel, greet chat, ...). GamePhase