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>

audit/port-map/UserInterface/PythonNetworkStreamCommand.cpp.json

@@ -0,0 +1,44 @@
+{
+  "reference": "UserInterface/PythonNetworkStreamCommand.cpp",
+  "reference_sha256": "08d9a36866b03ec7a04b4d34d4176d2137c88b7767f5d6b22778cd7bf7529023",
+  "priority": "P2",
+  "contracts": [],
+  "functions": {
+    "SkipSpaces": {
+      "status": "PORTED",
+      "impl": [
+        "extension/src/port/UserInterface/PythonNetworkStreamCommand.cpp:SkipSpaces"
+      ]
+    },
+    "OneArgument": {
+      "status": "PORTED",
+      "impl": [
+        "extension/src/port/UserInterface/PythonNetworkStreamCommand.cpp:OneArgument"
+      ]
+    },
+    "AppendMonsterList": {
+      "status": "PORTED",
+      "impl": [
+        "extension/src/port/UserInterface/PythonNetworkStreamCommand.cpp:AppendMonsterList"
+      ]
+    },
+    "CPythonNetworkStream::ClientCommand": {
+      "status": "PORTED",
+      "impl": [
+        "extension/src/port/UserInterface/PythonNetworkStreamCommand.cpp:CPythonNetworkStream::ClientCommand"
+      ]
+    },
+    "SplitToken": {
+      "status": "PORTED",
+      "impl": [
+        "extension/src/port/UserInterface/PythonNetworkStreamCommand.cpp:SplitToken"
+      ]
+    },
+    "CPythonNetworkStream::ServerCommand": {
+      "status": "PORTED",
+      "impl": [
+        "extension/src/port/UserInterface/PythonNetworkStreamCommand.cpp:CPythonNetworkStream::ServerCommand"
+      ]
+    }
+  }
+}