test(config): Improve test coverage for Config/Controller.php and CLIUtils.php

[usernane]

File

Config/Controller.php, Cli/CLIUtils.php

Current Coverage

Config/Controller.php: 18.4% (9/49), Cli/CLIUtils.php: 22.0% (13/59)

Scenarios to Cover

• Controller: reading and writing all config properties
• Controller: switching between JSON and class-based drivers
• Controller: handling missing or corrupt config
• CLIUtils: all helper methods used by CLI commands
• CLIUtils: input prompting and validation helpers
• CLIUtils: error output formatting

Notes

Controller is used by every config read/write operation. CLIUtils is shared across all CLI commands.