- Added `Operation` enum and `SupportedOperation` struct to encapsulate supported operations and versions.
- Updated response generation to dynamically include the `pkg6depotd` version and supported operations.
- Enhanced integration tests to validate version string format changes.
- Expanded repository structure by introducing methods for fetching legacy catalogs, catalog file paths, and repository info.
- Added new REST API v1 endpoints for catalog, manifest, file, and publisher handling.
- Implemented `publisher` handler module with `get_publisher_v0` and `get_publisher_v1` methods to retrieve publisher details in pkg5 format.
- Updated `integration_tests` to validate new endpoints and ensure compatibility with legacy and modern catalog/manifest handling.
- Removed unused dependency `walkdir` and refactored test cases for clarity and efficiency.
- Implemented `DepotRepo` for repository access, including methods for catalog path, file path, and manifest retrieval.
- Introduced foundational HTTP routes for catalog, manifest, file, and package info retrieval.
- Added integration tests to validate repository setup and basic server functionality.
- Modularized HTTP handlers for better maintainability and extended them with new implementations like `info` and `manifest` handling.
- Refactored `main` function to simplify initialization and leverage reusable `run` logic in a new `lib.rs`.
- Updated `Cargo.toml` and `Cargo.lock` to include new dependencies: `walkdir` and updated testing utilities.
