Added a basic MemoryArena.

Added one scratch, one engine and one game arena.
Converted the game alloc to arena + the display stuff.
WIP

Made using Antigravity+gemini

misc/launch.bat

@@ -2,8 +2,21 @@
 setlocal
 
 :: --- 1. Argument Parsing Logic ---
-set "ARG1=%~1"
-set "ARG2=%~2"
+set "ARG1="
+set "ARG2="
+set "AUTOCLOSE=0"
+
+for %%x in (%*) do (
+    if /I "%%~x"=="autoclose" (
+        set "AUTOCLOSE=1"
+    ) else (
+        if not defined ARG1 (
+            set "ARG1=%%~x"
+        ) else if not defined ARG2 (
+            set "ARG2=%%~x"
+        )
+    )
+)
 
 :: Set Defaults
 set "COMPILER_TYPE=clang"
@@ -44,6 +57,12 @@ if exist "%APP_DIR%\%APP_EXE%" (
     pushd "%APP_DIR%"
     start "" "%APP_EXE%"
     popd
+
+    if "%AUTOCLOSE%"=="1" (
+        echo [AUTOCLOSE] Waiting 5 seconds...
+        timeout /t 5 /nobreak >nul
+        taskkill /IM "%APP_EXE%" /F >nul 2>&1
+    )
 ) else (
     echo [ERROR] Executable not found at: %APP_DIR%\%APP_EXE%
     echo Please build first: fbuild JulietApp-%PLATFORM%-%CONFIG%