Add Larastan extension to phpstan.neon configuration

[robocopklaus]

Summary

larastan/larastan is installed in require-dev but the phpstan.neon configuration does not include Larastan's extension. PHPStan runs without Laravel-aware rules, missing Facade type resolution and config return types.

Problem

# phpstan.neon — missing includes directive
includes:
    - vendor/larastan/larastan/extension.neon

Without this, PHPStan cannot properly analyze:

• Facade method calls (e.g., Asset::find(), Queue::push())
• config() return types
• Laravel-specific patterns

Suggested Fix

Add the includes directive to phpstan.neon:

includes:
    - vendor/larastan/larastan/extension.neon

parameters:
    # existing config...

References

• File: phpstan.neon
• Consolidated review finding: V11