Current topic: "Verifying Full Regression Suite"
Topic summary: The diagnostic logging successfully identified a bug in the test fixtures where redundant file extensions were being appended. With this fix, `rD02` is now passing. I am now reverting the temporary logging changes in `VaultStorageImpl` and `VehicleRepositoryImpl` to restore the codebase to a clean state. Following this, I will run the full `regressionFullExtendedCheck` suite to confirm that all Phase 3 regression tests are green, as requested by the user.

Strategic Intent: I will remove the diagnostic logging from the production code and run the comprehensive regression suite to verify that all tests are now passing with the fixed fixture seeding.