- Add __getattr__ to crewai_tools/__init__.py to catch common typos
- Provide helpful error message when users try to import tools with lowercase 't' (e.g., PGSearchtool instead of PGSearchTool)
- Add specific error for PGSearchTool indicating it's under development
- Add comprehensive tests to verify error handling
Fixes#3776
Co-Authored-By: João <joao@crewai.com>