Register observable 2V0 gameplay stubs through RunApp

extension/src/platform/ScriptLib/PythonBoot.cpp

@@ -24,6 +24,8 @@ bool fail(std::string* error, const std::string& text)
 }
 }
 
+void init_2v0_gameplay_stubs();
+
 namespace PythonBoot
 {
 
@@ -77,6 +79,7 @@ bool RunMainScript(const char* lpCmdLine, std::string* error)
 	initgrpText();
 	initwndMgr();
 	initapp();
+	init_2v0_gameplay_stubs();
 
 	ClearLogBoxMessage();
 

extension/src/platform/ScriptLib/PythonBoot.h

@@ -26,8 +26,8 @@ bool Start(const char* stdlib_path, std::string* error);
 bool IsRunning();
 
 // 40250: RunMainScript(CPythonLauncher&, const char*) — the module initializers, __DEBUG__,
-// __COMMAND_LINE__ and RunFile("system.py"). Only the initializers that are ported are called; the rest
-// arrive with the 2V slices, which is why system.py still stops at its first import.
+// __COMMAND_LINE__ and RunFile("system.py"). 2V0-e registers temporary observable gameplay modules;
+// they are replaced by the real modules in later 2V slices.
 // False leaves *error set to what the launcher reported through LogBox (platform/EterBase/LogBox.h).
 bool RunMainScript(const char* lpCmdLine, std::string* error);