fix(test): create separate vitest config for integration tests

The integration tests were failing because vitest.config.mts excludes
test/integration/** directory, preventing test discovery even when
files are explicitly specified.

Fixed by:
- Creating vitest.integration.config.mts specifically for integration tests
- Removing test/integration/** from exclude patterns
- Increasing testTimeout to 60s for longer-running integration tests
- Adding cwd: ROOT_DIR to spawn options for correct working directory

This allows integration tests to run independently without conflicting
with the main test suite configuration.

Author: jdalton

packages/cli/scripts/integration.mjs

@@ -117,9 +117,10 @@ async function runVitest(binaryType) {
       'run',
       'test/integration/binary/binary-test-suite.test.mts',
       '--config',
-      'vitest.config.mts',
+      'vitest.integration.config.mts',
     ],
     {
+      cwd: ROOT_DIR,
       env: {
         ...process.env,
         RUN_INTEGRATION_TESTS: '1', // Automatically enable tests when explicitly running integration.mjs.

packages/cli/vitest.integration.config.mts

@@ -0,0 +1,43 @@
+import os from 'node:os'
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import { defineConfig } from 'vitest/config'
+
+import { getLocalPackageAliases } from './scripts/utils/get-local-package-aliases.mjs'
+
+// Get the socket-cli repo root directory.
+const __dirname = path.dirname(fileURLToPath(import.meta.url))
+const repoRoot = path.resolve(__dirname, '../..')
+
+export default defineConfig({
+  resolve: {
+    alias: getLocalPackageAliases(repoRoot),
+    preserveSymlinks: false,
+  },
+  test: {
+    globals: false,
+    environment: 'node',
+    include: ['test/integration/**/*.test.{mts,ts}'],
+    exclude: [
+      '**/node_modules/**',
+      '**/dist/**',
+      '**/.{idea,git,cache,output,temp}/**',
+      '**/{karma,rollup,webpack,vite,vitest,jest,ava,babel,nyc,cypress,tsup,build,eslint,prettier}.config.*',
+    ],
+    reporters: ['default'],
+    setupFiles: ['./test/setup.mts'],
+    pool: 'threads',
+    poolOptions: {
+      threads: {
+        singleThread: false,
+        maxThreads: os.cpus().length,
+        minThreads: Math.min(2, Math.floor(os.cpus().length / 2)),
+        isolate: true,
+      },
+    },
+    testTimeout: 60_000, // Integration tests may take longer.
+    hookTimeout: 30_000,
+    fileParallelism: true,
+  },
+})