Runtime patches no longer use webpack module ids or minified export
names, which change with every Steam UI build:
- modules/lib/finders.js: finder library (getWebpackRequire,
findModule/findExport by source text and shape, resolveAll with a
per-page cache, findFiberUp/findFiberDown/findInReactTree), installed
once per page as window.__sfuiFind.
- modules/lib/signatures.json: the signatures, per patch, shared by the
patches and the checker. lib/default.nix mkPatch wraps a patch
`(find, sigs, opts) => ...` with the library, its signatures and
options; exposed as steamFrame.uiPatches.lib.
- Keyboard patch (VERSION 10): layouts module, current/enabled layout
getters, arrow keys, VR keyboard status and VirtualKeyboardManager are
found by signature; if one doesn't match it reports which and leaves
Steam untouched. unpatch.js uses references the patch remembered.
The helper logs inject results when they change.
- launcher-menu launch/pinned-desktop use the library's fiber helpers;
launch no longer depends on the bar popup's window name.
- scripts/check-signatures.mjs (+ webpack-modules.mjs): extracts module
factories from the installed bundles without a browser and checks
every signature (found / ambiguous / missing, with module ids and
export names). README: "Finders and signatures", "After a Steam update".
