feat(libs): restore libSceNpCppWebApi for dumps that ship no copy

CONTRIBUTING.md

@@ -8,7 +8,7 @@
 - A silent stub is allowed only when it unblocks a title and only affects the UI; add it under Silent stubs in its library's [technical debt](docs/dev/debt/) file.
 - Missing imports fail at startup with a clear error; don't replace them with fallbacks that keep running.
 - Implement the general behaviour of a function, not what one title happens to need.
-- Don't add replacements for modules that titles ship themselves in `sce_module/`, `sce_modules/` or `prx/`: engine or middleware modules (Cohtml, FMOD, GOG Galaxy) and SDK libraries that only wrap other system libraries (NpCppWebApi over NpWebApi2). The relinker converts and loads the title's own module, and a host library with the same name is left out of `DT_NEEDED`. Only system libraries, which reach the kernel or the hardware, are reimplemented in [core/libs/prx](core/libs/prx).
+- Don't add replacements for modules that titles ship themselves in `sce_module/`, `sce_modules/` or `prx/`: engine or middleware modules (Cohtml, FMOD, GOG Galaxy) and SDK libraries that only wrap other system libraries. The relinker converts and loads the title's own module, and a host library with the same name is left out of `DT_NEEDED`. Only system libraries, which reach the kernel or the hardware, are reimplemented in [core/libs/prx](core/libs/prx). A host copy may still exist for a wrapped library that some dumps lack entirely, like libSceNpCppWebApi: the title's own module wins whenever one is shipped, so it is only ever consulted by titles that ship nothing.
 - Avoid non-standard extensions (`__attribute__`, etc.) where standard C++ is enough. Helper symbols that must not become NIDs use the `_nid_no_patch` or `_nid_no_patch_cut` suffix.
 - The relinker uses only the C++20 standard library.
 - Third-party code is added as a submodule under `3rdparty/` and built from source, not found on the system. With `ANYPS5_USE_SYSTEM_DEPS=ON` the packages packaged by the distributions (SDL2, freetype, Vulkan-Headers, SPIRV-Headers, glslang and SPIRV-Tools) come from the system instead; that resolution lives in [cmake/SystemDeps.cmake](cmake/SystemDeps.cmake) and the default build never reads the system.

core/libs/CMakeLists.txt

@@ -451,6 +451,16 @@ if(BUILD_TESTING)
         set_tests_properties(prx_thread_local_destructors PROPERTIES TIMEOUT 300)
     endif()
 
+    add_test_executable(guest_np_cpp_web_api_intrusive_ptr_tests tests/GuestNpCppWebApiIntrusivePtr.cpp)
+    target_include_directories(guest_np_cpp_web_api_intrusive_ptr_tests PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
+    target_link_libraries(guest_np_cpp_web_api_intrusive_ptr_tests PRIVATE libSceNpCppWebApi libc)
+    configure_windows_unwind(guest_np_cpp_web_api_intrusive_ptr_tests)
+    add_test(NAME guest_np_cpp_web_api_intrusive_ptr COMMAND guest_np_cpp_web_api_intrusive_ptr_tests)
+    if(WIN32)
+        set_tests_properties(guest_np_cpp_web_api_intrusive_ptr PROPERTIES ENVIRONMENT_MODIFICATION
+            "PATH=path_list_prepend:$<TARGET_FILE_DIR:libSceNpCppWebApi>")
+    endif()
+
     add_test_executable(savedata_core_write_replacement_tests tests/SaveDataWriteReplacement.cpp)
     target_include_directories(savedata_core_write_replacement_tests PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
     target_link_libraries(savedata_core_write_replacement_tests PRIVATE libSceSaveData)

core/libs/prx/libSceNpCppWebApi/CMakeLists.txt

@@ -0,0 +1,21 @@
+add_library(libSceNpCppWebApi SHARED EXCLUDE_FROM_ALL Export.cpp)
+target_include_directories(libSceNpCppWebApi PRIVATE ${LIBS_INCLUDE_DIR})
+configure_windows_unwind(libSceNpCppWebApi)
+
+if(MINGW)
+    foreach(runtimeLinkFlag IN ITEMS -static-libgcc -static-libstdc++ -static)
+        string(REPLACE "${runtimeLinkFlag}" "" CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
+    endforeach()
+endif()
+
+if(BUILD_TESTING)
+    add_test_executable(guest_np_cpp_web_api_string_tests ${LIBS_INCLUDE_DIR}/tests/GuestNpCppWebApiString.cpp)
+    target_include_directories(guest_np_cpp_web_api_string_tests PRIVATE ${LIBS_INCLUDE_DIR})
+    target_link_libraries(guest_np_cpp_web_api_string_tests PRIVATE libSceNpCppWebApi libc)
+    configure_windows_unwind(guest_np_cpp_web_api_string_tests)
+    add_test(NAME guest_np_cpp_web_api_string COMMAND guest_np_cpp_web_api_string_tests)
+    if(WIN32)
+        set_tests_properties(guest_np_cpp_web_api_string PROPERTIES ENVIRONMENT_MODIFICATION
+            "PATH=path_list_prepend:$<TARGET_FILE_DIR:libc>")
+    endif()
+endif()