Fix SQLite log handling issue causing ValueError: Logs cannot be None in tests (#1899)

* Fix SQLite log handling issue causing ValueError: Logs cannot be None in tests

- Add proper error handling in SQLite storage operations
- Set up isolated test environment with temporary storage directory
- Ensure consistent error messages across all database operations

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

* fix: Sort imports in conftest.py

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

* fix: Convert TokenProcess counters to instance variables to fix callback tracking

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

* refactor: Replace print statements with logging and improve error handling

- Add proper logging setup in kickoff_task_outputs_storage.py
- Replace self._printer.print() with logger calls
- Use appropriate log levels (error/warning)
- Add directory validation in test environment setup
- Maintain consistent error messages with DatabaseError format

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

* fix: Comprehensive improvements to database and token handling

- Fix SQLite database path handling in storage classes
- Add proper directory creation and error handling
- Improve token tracking with robust type checking
- Convert TokenProcess counters to instance variables
- Add standardized database error handling
- Set up isolated test environment with temporary storage

Resolves test failures in PR #1899

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

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Joe Moura <joao@crewai.com>
Co-authored-by: João Moura <joaomdmoura@gmail.com>

tests/conftest.py

@@ -1,4 +1,37 @@
 # conftest.py
+import os
+import tempfile
+from pathlib import Path
+
+import pytest
 from dotenv import load_dotenv
 
 load_result = load_dotenv(override=True)
+
+@pytest.fixture(autouse=True)
+def setup_test_environment():
+    """Set up test environment with a temporary directory for SQLite storage."""
+    with tempfile.TemporaryDirectory() as temp_dir:
+        # Create the directory with proper permissions
+        storage_dir = Path(temp_dir) / "crewai_test_storage"
+        storage_dir.mkdir(parents=True, exist_ok=True)
+        
+        # Validate that the directory was created successfully
+        if not storage_dir.exists() or not storage_dir.is_dir():
+            raise RuntimeError(f"Failed to create test storage directory: {storage_dir}")
+        
+        # Verify directory permissions
+        try:
+            # Try to create a test file to verify write permissions
+            test_file = storage_dir / ".permissions_test"
+            test_file.touch()
+            test_file.unlink()
+        except (OSError, IOError) as e:
+            raise RuntimeError(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)
+        
+        yield
+        
+        # Cleanup is handled automatically when tempfile context exits