- Replace agent.role with agent.id (UUID) in RAGStorage directory naming
- UUIDs are guaranteed short (36 chars) and filesystem-safe
- Remove unused _sanitize_role method since UUIDs don't need sanitization
- Add comprehensive tests for Windows path length scenarios
- Add test case for long agent roles in existing memory tests
- Maintains backward compatibility while fixing Windows 260-char limit
Fixes#3236
Co-Authored-By: João <joao@crewai.com>