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>

src/crewai/llm.py

@@ -222,6 +222,19 @@ class LLM:
                 ].message
                 text_response = response_message.content or ""
                 tool_calls = getattr(response_message, "tool_calls", [])
+                
+                # Ensure callbacks get the full response object with usage info
+                if callbacks and len(callbacks) > 0:
+                    for callback in callbacks:
+                        if hasattr(callback, "log_success_event"):
+                            usage_info = getattr(response, "usage", None)
+                            if usage_info:
+                                callback.log_success_event(
+                                    kwargs=params,
+                                    response_obj={"usage": usage_info},
+                                    start_time=0,
+                                    end_time=0,
+                                )
 
                 # --- 2) If no tool calls, return the text response
                 if not tool_calls or not available_functions: