feat: Introduce Hybrid Logical Clocks in protobuf, update architecture documentation, and add HLC test cases.

lattice-store/src/lib.rs

@@ -0,0 +1,12 @@
+//! Lattice Store
+//!
+//! Log-based Key-Value store:
+//! - State is a "view" generated by replaying entries
+//! - Watermarks for agreeing on safe compaction points
+//! - Snapshots for replacing old logs
+
+pub mod store;
+pub mod snapshot;
+pub mod watermark;
+
+pub use store::Store;