UOW-004: Remove Global State

[andhijeannot]

Overview

Phase: 2 - Code Quality
Priority: High
Estimated Effort: 8-10 hours

Problem Description

The global opts variable in generator.go:214 creates tight coupling and makes the code difficult to test and maintain.

Acceptance Criteria

• All global state removed from generator package
• Options passed through method parameters or struct fields
• Code remains fully functional
• Unit tests can run in isolation
• No breaking changes to public API
• Thread-safe operation ensured

Files to Modify

• internal/generator/generator.go (major refactoring)
• internal/generator/options.go (new file)
• cmd/new.go (update to use new generator pattern)

See roadmap/phase2-quality/UOW-004-remove-global-state.md for detailed implementation plan.