Test-Only Changes for Rule Engine

[TeachMeTW]

This PR adds comprehensive test coverage for recent changes:

Mode Inference Testing:

• Adds TestRuleEngine.py with test cases for rule-based mode inference
• Includes multiple test scenarios to verify rule engine classification
• Tests various edge cases and known scenarios from real data

Transit Matching Tests:

• Implements TestMatchStops.py with full test coverage for transit stop matching
• Validates the caching mechanism functionality
• Ensures consistent behavior with and without cached results

Updated Test Data:

• Regenerated ground truth files for rule engine compatibility
• Added additional test data for transit matching scenarios
• Updated expected data files to match new inference behavior

Reference:
Original PR was split to separate implementation from tests for easier review and integration.

THIS WILL FAIL DUE TO THE OTHER PR HAVING THE NECESSARY CODE