Overlay process.rs and ui.rs into source/rpatchur/rpatchur/src/ from the retained Updater-source-and-notices.zip. Build with cargo build --release --locked -p rpatchur using the documented Windows MSVC toolchain; retain all upstream/dependency notices. Launcher JS changes are shipped as patcher-ui/launcher.js. Tests: node patcher/ui/tests/launcher.test.js; cargo test --locked -p rpatchur. Native QA: automatic HTTPS check, first Play, close game normally, second Play with no check; each reached the unchanged February game login. Never disable integrity checks or overwrite an open game.
