add test

vitest.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig } from "vitest/config";
+import { resolve } from "path";
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: "node",
+    setupFiles: ["./tests/setup.ts"],
+    include: ["src/**/*.test.ts", "tests/**/*.test.ts"],
+    testTimeout: 30000, // 30 seconds for API calls
+    coverage: {
+      provider: "v8",
+      reporter: ["text", "json", "html"],
+      exclude: ["node_modules/", "tests/", "**/*.d.ts", "**/*.config.*"],
+    },
+  },
+  resolve: {
+    alias: {
+      "@main": resolve(__dirname, "src/main"),
+      "@preload": resolve(__dirname, "src/preload"),
+      "@renderer": resolve(__dirname, "src/renderer/src"),
+      "@shared": resolve(__dirname, "src/shared"),
+    },
+  },
+});