fix(macosx): make packaged games find the bundled lib/ (RPATH + bootstrap)

The SDK eve carries INSTALL_RPATH @loader_path/../lib for the bin/+lib/
SDK layout, but 'eve package' places the copied lib/ tree at <out>/lib
next to the eve binary, so dyld failed with '@rpath/libz.1.dylib' not
loaded. Add @loader_path/lib to the RPATH and make bootstrapBundledVulkan
check exeDir/lib (package layout) in addition to ../lib (SDK) and
../Frameworks (.app bundle).

cmake/install_sdk.cmake

@@ -67,7 +67,10 @@ if(BUILD_PLATFORM STREQUAL "macosx")
     ")
     install(SCRIPT "${CMAKE_SOURCE_DIR}/cmake/macosx_bundle_vulkan.cmake")
     set_target_properties(${EVENGINE_NATIVE_TARGET} PROPERTIES
-        INSTALL_RPATH "@loader_path/../lib;@loader_path"
+        # SDK layout is bin/eve + lib/ (-> ../lib). `eve package` copies the
+        # lib/ tree next to eve as <out>/lib (-> @loader_path/lib). Keep both
+        # so the same binary runs from the SDK and from a packaged game.
+        INSTALL_RPATH "@loader_path/../lib;@loader_path/lib;@loader_path"
     )
 endif()
 

platform/macosx/macosx.mm

@@ -72,10 +72,11 @@ std::string bootstrapBundledVulkan() {
     const std::string exeDir = exe.substr(0, slash);
 
     // Packaged EVEngine distributions ship the loader + MoltenVK next to the
-    // executable: ../lib in the flat SDK layout (dist/eve-sdk/macosx), or
+    // executable: ../lib in the flat SDK layout (dist/eve-sdk/macosx), lib in
+    // a packaged game (eve package copies the SDK lib/ tree to <out>/lib), or
     // ../Frameworks inside an .app bundle.
     const std::string dir = [&]() -> std::string {
-        for (const char *rel : {"../lib", "../Frameworks"}) {
+        for (const char *rel : {"../lib", "lib", "../Frameworks"}) {
             const std::string candidate = exeDir + "/" + rel;
             if (::access((candidate + "/libvulkan.1.dylib").c_str(), R_OK) == 0)
                 return candidate;