- add: initial database and auth services

auth-service/src/lib.rs

@@ -0,0 +1,11 @@
+pub mod grpc;
+pub mod jwt;
+pub mod database_client;
+
+pub mod users;
+pub mod auth {
+    tonic::include_proto!("auth"); // Path matches the package name in auth.proto
+}
+pub mod database {
+    tonic::include_proto!("database"); // Matches package name in database.proto
+}