Introduce `currentSnapshotID` to track the active snapshot and persist its state in a file. This change ensures the current snapshot ID is restored during initialization and maintained consistently across snapshot operations.
Updated `SaveSnapshot` and `RestoreSnapshot` methods to reference the active directory via `BlobStore`. Introduced `RestoreSnapshotToDir` for granular restore operations. Additionally, updated dependencies in `go.mod` to their latest versions for compatibility and maintenance.
Introduced `GetActiveDir` and `CleanActiveDir` methods in the blob store to manage a dedicated directory for active snapshot operations. This ensures a clean working state before starting new operations and prevents conflicts. Updated related logic in snapshot creation and restoration to utilize the active directory.
Implemented gRPC client and server for snapshot management, enabling remote operations like listing, fetching, and downloading snapshots. Updated interfaces to support the new gRPC implementation and integrated server start functionality into the API.
Introduces core functionality for the Agate library, including snapshot creation, restoration, listing, and deletion. Adds examples for basic usage, gRPC proto definitions, and build/configuration files such as `go.mod` and `Makefile`. The implementation establishes the framework for store integration and placeholder server functionality.
