test(main): completar fase 2 con cobertura de iconos y timing

src/main/windows/icon-path.ts

@@ -0,0 +1,20 @@
+import fs from "node:fs";
+import path from "node:path";
+
+import { AppRuntimeConfig } from "../config/runtime-config";
+
+export function resolveAppIconPath(
+  runtimeConfig: AppRuntimeConfig,
+  rootPath: string,
+  pathExists: (candidatePath: string) => boolean = fs.existsSync,
+): string | undefined {
+  const iconCandidates = [
+    runtimeConfig.iconPathOverride,
+    path.join(rootPath, "static", "icons", "icon.ico"),
+    path.join(rootPath, "static", "icons", "icon.png"),
+    path.join(rootPath, "static", "icon.ico"),
+    path.join(rootPath, "static", "icon.png"),
+  ].filter((candidate): candidate is string => Boolean(candidate));
+
+  return iconCandidates.find((candidate) => pathExists(candidate));
+}