Fix #2500: Add Crewai alias for backward compatibility

Co-Authored-By: Joe Moura <joao@crewai.com>

src/crewai/crew.py

@@ -1384,3 +1384,6 @@ class Crew(BaseModel):
             memory_system.reset()
         except Exception as e:
             raise RuntimeError(f"Failed to reset {name} memory") from e
+
+
+Crewai = Crew

tests/test_crewai_alias.py

@@ -0,0 +1,17 @@
+import unittest
+
+class TestCrewaiAlias(unittest.TestCase):
+    """Test the Crewai alias for backward compatibility."""
+
+    def test_crewai_alias_import(self):
+        """Test that Crewai can be imported from crewai.crew."""
+        try:
+            from crewai.crew import Crewai
+            from crewai.crew import Crew
+            
+            self.assertEqual(Crewai, Crew)
+        except ImportError:
+            self.fail("Failed to import Crewai from crewai.crew")
+
+if __name__ == "__main__":
+    unittest.main()