special external storage permission

- bump SDL to 2.32.0
- bump NDK to r27c
- bump AGP to 8.8.0
- bump Gradle to 8.10.2
- bump CMake to 3.31.5
- bump targetSdkVersion to 34
- add GitHub Actions Release support (Debug)
- add Special External Storage Permission support
- fix "assets not found" error on first launch
- add Android 5 & 6 support

mm/2s2h/SaveManager/SaveManager.cpp

@@ -37,7 +37,21 @@ typedef enum FlashSlotFile {
     ((GET_NEWF(save, 0) == 'Z') && (GET_NEWF(save, 1) == 'E') && (GET_NEWF(save, 2) == 'L') && \
      (GET_NEWF(save, 3) == 'D') && (GET_NEWF(save, 4) == 'A') && (GET_NEWF(save, 5) == '3'))
 
+#if !defined(__ANDROID__)
 const std::filesystem::path savesFolderPath(Ship::Context::GetPathRelativeToAppDirectory("saves", appShortName));
+#else
+// in Android, when targeting SurfaceFlinger (ANativeWindow, ART, calling JNI), to avoid problems, one should usually
+// try to avoid using C++ features that run port-sensitive code in early initialization BEFORE main() (SDL_main())
+// actually runs, like __attribute__((constructor)) and method-initialized global variables,
+// because it is necessary to wait until after the Java Activity initializes JNI before calling certain methods.
+// the Java Activity will call SDL_main() when it is ready to execute native code, and does not expect native application
+// code to be running before that point.
+std::filesystem::path savesFolderPath;
+// call this function early in main() before any other functions that use savesFolderPath are called.
+void SaveManager_Init(void) {
+    savesFolderPath = Ship::Context::GetPathRelativeToAppDirectory("saves", appShortName);
+}
+#endif
 
 // Migrations
 // The idea here is that we can read in any version of the save as generic JSON, then apply migrations