Lorenze/emphemeral tracing (#3323)

* for ephemeral traces

* default false

* simpler and consolidated

* keep raising exception but catch it and continue if its for trace batches

* cleanup

* more cleanup

* not using logger

* refactor: rename TEMP_TRACING_RESOURCE to EPHEMERAL_TRACING_RESOURCE for clarity and consistency in PlusAPI; update related method calls accordingly

* default true

* drop print

tests/conftest.py

@@ -34,11 +34,11 @@ def setup_test_environment():
                 f"Test storage directory {storage_dir} is not writable: {e}"
             )
 
-        # Set environment variable to point to the test storage directory
         os.environ["CREWAI_STORAGE_DIR"] = str(storage_dir)
-
+        os.environ["CREWAI_TESTING"] = "true"
         yield
 
+        os.environ.pop("CREWAI_TESTING", None)
         # Cleanup is handled automatically when tempfile context exits