build: add build_verify dependency and ensure build test

[marfavi]

Adds build_verify as a dev dependency and updates the build test to ensure generated code stays up to date.

Description

• Remove dummy test placeholder
• Add build_verify dependency
• Add test to verify build outputs are current

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore
• 🧪 Test