auto-claude: subtask-1-3 - Create comprehensive unit tests for Cache with LRU

vitest.config.ts

@@ -0,0 +1,15 @@
+import { defineConfig } from 'vitest/config';
+import path from 'path';
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'node',
+    include: ['src/__tests__/**/*.test.ts', 'src/__tests__/**/*.test.tsx'],
+  },
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+});