feat: various fixes for electron, and database migration and version on loading page

scripts/bundle-electron-preload.cjs

@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+"use strict";
+
+/**
+ * Electron sandbox preloads cannot require() sibling modules. Bundle shellOrigin
+ * into a single preload script for packaged AppImage / desktop builds.
+ */
+
+const fs = require("fs");
+const path = require("path");
+
+const root = path.join(__dirname, "..");
+const shellPath = path.join(root, "electron", "shellOrigin.js");
+const preloadPath = path.join(root, "electron", "preload.js");
+const outPath = path.join(root, "electron", "preload.bundle.js");
+
+const shellSource = fs.readFileSync(shellPath, "utf8");
+const preloadSource = fs.readFileSync(preloadPath, "utf8");
+
+const shellBody = shellSource
+    .replace(/^"use strict";\s*/m, "")
+    .replace(/\nmodule\.exports\s*=\s*\{[\s\S]*$/m, "")
+    .trim();
+
+const preloadBody = preloadSource
+    .replace(/const \{ isTrustedShellOrigin \} = require\("\.\/shellOrigin"\);\s*/m, "")
+    .trim();
+
+const bundled = `// SPDX-License-Identifier: 0BSD
+// Generated by scripts/bundle-electron-preload.cjs. Do not edit by hand.
+
+"use strict";
+
+${shellBody}
+
+${preloadBody}
+`;
+
+fs.writeFileSync(outPath, bundled, "utf8");
+console.log(`Bundled electron preload -> ${path.relative(root, outPath)}`);

scripts/sync_version.js

@@ -8,6 +8,7 @@
  * meshchatx/src/frontend/public/meshchatx-docs/en/platform-guides/raspberry-pi.md,
  * meshchatx/src/backend/data/licenses_backend.json (reticulum-meshchatx entry),
  * android/app/build.gradle,
+ * electron/app-version.json,
  * pipx example, packaging/arch/PKGBUILD pkgver / printf fallback,
  * then runs scripts/bake_build_meta.js (git commit / channel overlay).
  *
@@ -137,6 +138,9 @@ patchFile("packaging/arch/.SRCINFO", (c) =>
 
 console.log(`Synced version ${version} from package.json`);
 
+const appVersionPath = path.join(root, "electron", "app-version.json");
+writeIfChanged(appVersionPath, `${JSON.stringify({ version }, null, 4)}\n`);
+
 try {
     require("./bake_build_meta.js");
 } catch (err) {