Design a robust password strength checker in [PROGRAMMING_LANGUAGE] that evaluates passwords based on the following criteria: [MINIMUM_LENGTH], [CHARACTER_DIVERSITY] (uppercase, lowercase, numbers, symbols), and [COMMON_PASSWORD_CHECK]. The tool should return a score from 0 (weak) to 100 (strong) and provide actionable feedback like 'Add symbols' or 'Increase length to [RECOMMENDED_LENGTH].' Ensure the code is modular, well-documented, and includes unit tests for edge cases like empty strings or excessively long inputs. Bonus: Implement a [BRUTE_FORCE_RESISTANCE] metric to estimate cracking time.