fix: include deployment tests in vitest CI configuration

- Add packages/theme/src/tests/deployment/**/* to vitest.config.ci.ts include patterns
- Resolves Group 5 CI test failures where external-services.test.ts was excluded
- CI connectivity and config validation commands now work correctly
- Supports proper Group 5 testing strategy (environment/infrastructure focus)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: jonphipps

vitest.config.ci.ts

@@ -18,8 +18,8 @@ export default defineConfig({
       // Configuration tests - critical for proper site behavior
       'packages/theme/src/tests/config/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}',
 
-      // Exclude all script tests (development tools)
-      // These are already validated locally and don't affect deployment
+      // Deployment tests - external service connectivity for CI environments
+      'packages/theme/src/tests/deployment/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}',
     ],
     exclude: [
       ...(baseConfig.test?.exclude || []),