[Epic] Establish Core Application Infrastructure and CLI

**Background**

Following the implementation of core file system data handling (tracked separately), Version 0.1.0 InDev of Tessitura requires a robust application structure to house this logic and provide a user interface. This involves defining a scalable code architecture, establishing consistent error management, and creating a functional command-line interface. These elements are crucial for building a maintainable, reliable, and usable tool.

**Description**

This Epic tracks the foundational work needed to structure the Tessitura application, implement comprehensive error handling, and enable user interaction via the command line. It groups the essential tasks required to move beyond raw data processing and build a cohesive application framework.

**Constituent Tasks**

- [ ] Define Module Structure (#5)
- [ ] Implement Error Handling Framework (#6)
- [ ] Command Line Argument Parsing (#7)

**Technical Notes**

- Ensure the module structure defined in #5 effectively supports the separation of concerns needed for the error handling (#6) and CLI (#7) components.
- The error handling framework (#6) should be consistently adopted across all modules, including the CLI argument parsing logic (#7).
- Maintain adherence to Rust best practices for architecture, error management, and CLI design throughout the implementation of the child issues.
- Focus on creating clean interfaces between the modules defined in #5.

**Acceptance Criteria**

- All constituent tasks (#5, #6, #7) are completed, reviewed, merged, and closed.
- The codebase is organized according to the module structure defined and implemented in #5.
- A consistent error handling framework (#6) is established and utilized appropriately within the application's modules, including the CLI.
- The application correctly parses command-line arguments (#7) and provides appropriate feedback or help messages using the established error framework (#6) when necessary.
- The core infrastructure components integrate effectively, providing a solid foundation for application logic and user interaction.
- The overall application compiles and demonstrates basic functional integrity incorporating these infrastructural elements.

**Estimated Effort**

Aggregate of child issues (See individual issues #5, #6, #7 for details).