fix: update vitest config (exclude .worktrees, revert package.json test scripts to vitest)

vitest.config.ts

@@ -6,13 +6,7 @@ export default defineConfig({
     environment: "node",
     globals: true,
     setupFiles: [],
-    // drizzle-orm ships ESM files that only contain sourceMappingURL references
-    // (e.g. operations.js has no actual re-exports), which breaks named-export
-    // resolution between test files.  Inlining lets Vite process the CJS
-    // fallback and provide proper named exports.
-    deps: {
-      inline: ["drizzle-orm", "drizzle-orm/pg-core", "drizzle-orm/node-postgres"],
-    },
+    exclude: ["**/node_modules/**", "**/.worktrees/**"],
   },
   resolve: {
     alias: {