[v0.5.0] - 2025-10-04

🔧 Refactoring

• Split CLI definition into a dedicated cli.rs module
• Added a new commands.rs module to handle subcommand actions (config init, file init, cache clear)
• Extracted configuration logic from utils.rs into a new config.rs module
• Simplified main.rs to only parse CLI input and dispatch commands

✨ CLI Improvements

• Introduced subcommands:
  • config init → initialize the configuration file
  • file init → create a sample default fortune file (rfortune.dat)
  • cache clear → clear the cache directory
• Enhanced --help output with a detailed long_about description and usage examples

✅ Misc

• Clearer module boundaries (cli, commands, config, utils, loader)
• Improved maintainability and readability of the codebase