Feat: Add 'app' subproject and integrate LSPlt submodule

This commit introduces the main application subproject, 'app', and sets up the necessary infrastructure for the TEESimulator.

Key changes:
*   'app' Subproject Setup: Added the new :app module with its initial structure, including build files, manifest, and Kotlin main entry point.
*   LSPlt Integration: Added the LSPlt hooking framework as a Git submodule in app/src/main/cpp/external/ and configured its use in CMake.
*   Native Build Configuration: Configured the C++ build to use LSPlt statically and compile two essential native libraries: libinject.so (for injection) and libTEESimulator.so (for interception/logic).
*   Module Packaging: Implemented complex Gradle logic within app/build.gradle.kts to automate the creation of a flashable zip module (supporting Magisk, Ksu, and Apatch) with versioning based on Git information.
*   Initial Module Files: Added the template files (module.prop, update-binary, updater-script) for the flashable module structure.

app/src/main/cpp/CMakeLists.txt

@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 3.10)
+project(TEESimulator)
+
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
+
+# LSPlt configuration
+OPTION(LSPLT_BUILD_SHARED OFF)
+add_subdirectory(external/LSPlt/lsplt/src/main/jni)
+
+add_executable(libinject.so inject/main.cpp)
+target_link_libraries(libinject.so PRIVATE lsplt_static)
+
+add_library(${CMAKE_PROJECT_NAME} SHARED binder_interceptor.cpp)
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE lsplt_static)
+

app/src/main/cpp/binder_interceptor.cpp

@@ -0,0 +1,6 @@
+#include "lsplt.hpp"
+
+extern "C" [[gnu::visibility("default")]] [[gnu::used]]
+bool entry(void *library_handle) {
+  return true;
+}

app/src/main/cpp/inject/main.cpp

@@ -0,0 +1,3 @@
+#include "lsplt.hpp"
+
+int main(int argc, char **argv) { return 0; }