feat: Restore Electron renderer and enhance NodeCG runtime management

src/main/app/bootstrap.ts

@@ -1,4 +1,5 @@
 import { app, BrowserWindow } from "electron";
+import path from "node:path";
 
 import { getRuntimeConfig } from "../config/runtime-config";
 import { showFatalError, log } from "../errors/error-presenter";
@@ -15,7 +16,7 @@ export function bootstrap(): void {
   const paths = getApplicationPaths({
     appConfig,
     appDataPath: app.getPath("appData"),
-    compiledMainDir: __dirname,
+    compiledMainDir: path.resolve(__dirname, ".."),
     isDev,
     resourcesPath: process.resourcesPath,
   });

src/main/nodecg/runtime-provisioner.ts

@@ -38,6 +38,7 @@ type RuntimeManifest = {
   bundleName?: unknown;
   sourceRuntime?: RuntimeManifest | null;
   bundleVersion?: unknown;
+  generatedAt?: unknown;
   nodecgVersion?: unknown;
 };
 
@@ -131,6 +132,7 @@ function shouldInstallRuntime(
     targetMarker?.appVersion !== appVersion ||
     targetMarker?.bundleName !== bundleName ||
     targetMarker?.sourceRuntime?.bundleVersion !== sourceMarker?.bundleVersion ||
+    targetMarker?.sourceRuntime?.generatedAt !== sourceMarker?.generatedAt ||
     targetMarker?.sourceRuntime?.nodecgVersion !== sourceMarker?.nodecgVersion
   );
 }

src/tests/runtime-provisioner.test.ts

@@ -92,7 +92,7 @@ test("prepareUserNodecgRuntime keeps an up-to-date runtime in place", () => {
   const source = path.normalize("/app/lib/nodecg");
   const userData = path.normalize("/user/scoreko");
   const target = path.join(userData, "nodecg");
-  const sourceManifest = { bundleVersion: "0.1.0", nodecgVersion: "2.6.4" };
+  const sourceManifest = { bundleVersion: "0.1.0", generatedAt: "2026-05-24T00:00:00.000Z", nodecgVersion: "2.6.4" };
   const targetManifest = { appVersion: "0.1.0", bundleName: "scoreko-dev", sourceRuntime: sourceManifest };
   const { state, deps } = createFakeFs(
     [
@@ -125,7 +125,7 @@ test("prepareUserNodecgRuntime refreshes managed files when the app version chan
   const source = path.normalize("/app/lib/nodecg");
   const userData = path.normalize("/user/scoreko");
   const target = path.join(userData, "nodecg");
-  const sourceManifest = { bundleVersion: "0.1.0", nodecgVersion: "2.6.4" };
+  const sourceManifest = { bundleVersion: "0.1.0", generatedAt: "2026-05-24T00:00:00.000Z", nodecgVersion: "2.6.4" };
   const targetManifest = { appVersion: "0.0.9", bundleName: "scoreko-dev", sourceRuntime: sourceManifest };
   const { state, deps } = createFakeFs(
     [
@@ -155,3 +155,42 @@ test("prepareUserNodecgRuntime refreshes managed files when the app version chan
   assert.ok(state.removed.includes(path.join(target, "bundles")));
   assert.ok(!state.removed.includes(path.join(target, "db")));
 });
+
+test("prepareUserNodecgRuntime refreshes managed files when the source runtime was regenerated", () => {
+  const source = path.normalize("/app/lib/nodecg");
+  const userData = path.normalize("/user/scoreko");
+  const target = path.join(userData, "nodecg");
+  const sourceManifest = { bundleVersion: "0.1.0", generatedAt: "2026-05-24T01:00:00.000Z", nodecgVersion: "2.6.4" };
+  const targetSourceManifest = {
+    bundleVersion: "0.1.0",
+    generatedAt: "2026-05-24T00:00:00.000Z",
+    nodecgVersion: "2.6.4",
+  };
+  const targetManifest = { appVersion: "0.1.0", bundleName: "scoreko-dev", sourceRuntime: targetSourceManifest };
+  const { state, deps } = createFakeFs(
+    [
+      ...getSourcePaths(source),
+      path.join(target, "node_modules", "nodecg", "dist", "server", "bootstrap.js"),
+      path.join(target, "bundles", "scoreko-dev", "package.json"),
+      path.join(target, ".scoreko-installed-runtime.json"),
+    ],
+    {
+      [path.join(source, ".scoreko-runtime.json")]: JSON.stringify(sourceManifest),
+      [path.join(target, ".scoreko-installed-runtime.json")]: JSON.stringify(targetManifest),
+    },
+  );
+
+  const preparedRuntime = prepareUserNodecgRuntime({
+    sourceRuntimePath: source,
+    userDataPath: userData,
+    appVersion: "0.1.0",
+    bundleName: "scoreko-dev",
+    log: () => undefined,
+    deps,
+  });
+
+  assert.equal(preparedRuntime.installed, true);
+  assert.equal(state.copied.length, 1);
+  assert.ok(state.removed.includes(path.join(target, "bundles")));
+  assert.ok(!state.removed.includes(path.join(target, "cfg")));
+});