fix: make:enum creates Enums directory if none exists

[Waris10]

What this fixes

When running make:enum in a fresh Laravel application (or any app without an existing Enums or Enumerations directory), the generated enum is dropped directly into app/ with namespace App; instead of the expected app/Enums/ with namespace App\Enums;.

This happens because getDefaultNamespace() falls back to the root namespace when neither folder exists, and no directory is created.

The fix

The default case in getDefaultNamespace() now returns $rootNamespace.'\\Enums' instead of $rootNamespace. The existing makeDirectory() call in the parent GeneratorCommand class handles the actual folder creation — so no additional infrastructure changes are needed.

Why this doesn't break existing behaviour

• If app/Enums already exists → same behaviour as before
• If app/Enumerations already exists → same behaviour as before
• If neither exists → previously broken (dumped in app/), now correctly creates app/Enums/ and places the file there

Benefit to end users

Running make:enum Status on a fresh app now works exactly as a developer would expect — consistent with how other make:* commands handle their target directories. No manual folder creation needed.

Tests

Updated three existing tests that were asserting the old broken behaviour (namespace App; / app/*.php) to reflect the correct output. The two existing directory-specific tests are unchanged.