Feature: Code Coverage Boost As a developer I want to ensure all code paths are tested So that I achieve 85% test coverage Scenario: Test convert_exit_code function When I test convert_exit_code with various inputs Then convert_exit_code should handle all types correctly Scenario: Test CLI app commands directly When I test the CLI app commands Then all CLI commands should work correctly Scenario: Test exception handling When I test exception handling in main Then exception handling should return correct codes Scenario: Test Settings class initialization When I create a Settings instance Then it should have default values Scenario: Test Settings production check When I check if Settings is in production mode Then it should return the correct production status Scenario: Test Settings database URL When I get the database URL from Settings Then it should return the configured database URL Scenario: Test Settings provider check When I check if any provider is configured in Settings Then it should return the provider status Scenario: Test platform module When I import and use the platform module Then ensure_cli_importable should work