chore: import upstream snapshot with attribution

electron/scripts/generate-version.cjs

@@ -0,0 +1,32 @@
+const fs = require("fs");
+const path = require("path");
+
+const electronRoot = path.join(__dirname, "..");
+const pkg = JSON.parse(
+  fs.readFileSync(path.join(electronRoot, "package.json"), "utf8"),
+);
+let existing = {};
+try {
+  existing = JSON.parse(
+    fs.readFileSync(path.join(electronRoot, "version.json"), "utf8"),
+  );
+} catch (_) {}
+
+const version = pkg.version;
+
+const update = {
+  version,
+  message: process.env.UPDATE_MESSAGE || existing.message || "",
+  downloads: {
+    linux: `https://github.com/presenton/presenton/releases/download/electron-v${version}/Presenton-${version}.deb`,
+    mac: `https://github.com/presenton/presenton/releases/download/electron-v${version}/Presenton-${version}.dmg`,
+    windows: `https://github.com/presenton/presenton/releases/download/electron-v${version}/Presenton-${version}.exe`,
+  },
+};
+
+fs.writeFileSync(
+  path.join(electronRoot, "version.json"),
+  JSON.stringify(update, null, 2),
+);
+
+console.log("version.json generated");