port 2V2-b: GamePhase dispatch consumes the Entergame burst

PythonNetworkStreamPhaseGame/PhaseGameActor/PhaseGameItem/Command,
NetworkActorManager and PythonChat/PythonChatModule are ported verbatim and
dispatched at runtime; the 2V0 chat stub module is removed and initChat()
runs before initnet() as in 40250. InstanceBase, PythonCharacterManager and
GameLib ActorInstance/RaceData/RaceManager compile but stay TODO until
2V2-c/d wire them.

Units not ported yet get their singletons from PythonBoot's GameSingletons
(CPythonApplication member order) and platform/pending stand-ins generated
by platform_stub.py pending; const char* stand-ins return "".

port.login_flow's fake server now sends the CInputLogin::Entergame order
(actor insert, NPC positions, PHASE_GAME, land list, time, channel, greet
notice, ping) and a TraceError observer asserts no unknown packet header.
port.login_live passes against the real server for 10 s of game phase.

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

extension/src/platform/UserInterface/PythonApplication.cpp

@@ -169,15 +169,11 @@ void CMovieMan::PlayLogo(const char*) { MT_PLATFORM_STUB(); }
 float GetDegreeDifference(float, float) { MT_PLATFORM_STUB(); return 0; }
 int GetRotatingDirection(float, float) { MT_PLATFORM_STUB(); return 0; }
 
-BOOL HAIR_COLOR_ENABLE = FALSE;
 BOOL PERF_CHECKER_RENDER_GAME = FALSE;
-BOOL RIDE_HORSE_ENABLE = FALSE;
 BOOL SKILL_EFFECT_UPGRADE_ENABLE = FALSE;
-BOOL USE_ARMOR_SPECULAR = FALSE;
 BOOL USE_WEAPON_SPECULAR = FALSE;
 D3DXCOLOR g_fSpecularColor;
 double g_specularSpd = 0;
-int g_iAccumulationTime = 0;
 
 bool LoadLocaleData(const char*) { MT_PLATFORM_STUB(); return false; }
 void SetGuildSymbolPath(const char*) { MT_PLATFORM_STUB(); }