refactor: structure of an hexagonal architecture

Created a kernel crate to store models and future action implementations.
Will be useful to create admin cli.

lib/kernel/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "kernel"
+edition = "2021"
+
+[dependencies]
+utils = { path = "../utils" }
+
+log = { workspace = true }
+env_logger = { workspace = true }
+anyhow = { workspace = true }
+fully_pub = { workspace = true }
+strum = { workspace = true }
+strum_macros = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+chrono = { workspace = true }
+toml = { workspace = true }
+sqlx = { workspace = true }
+dotenvy = { workspace = true }
+
+uuid = { workspace = true }
+url = { workspace = true }