Add functional JRPG frame and tools Add full-screen background_2 apertures, functional frame chrome, card-driven details, dual-window tools, live conversion workflows, and bounded cleanup for generated downloads. Co-authored-by: Copilot <[email protected]>

#!/bin/bash

export ROOT_DIR=${EXT_BUILD_ROOT:-$(pwd -P)}
export EMSCRIPTEN=$ROOT_DIR/$EM_BIN_PATH/emscripten
export EM_CONFIG=$ROOT_DIR/$EM_CONFIG_PATH