refactor: move library into it's own crate

cli/src/error.rs

@@ -0,0 +1,33 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error("{0}")]
+    Exception(&'static str),
+
+    #[error("{0}")]
+    Runtime(String),
+
+    #[error("{0}")]
+    Unhandled(&'static str),    
+    
+    #[error(transparent)]
+    Sync(#[from] lib_sync_core::error::Error),
+    
+    #[error(transparent)]
+    Sqlx(#[from] sqlx::Error),
+
+    #[error(transparent)]
+    Migration(#[from] sqlx::migrate::MigrateError),
+
+    #[error(transparent)]
+    Io(#[from] tokio::io::Error),
+    
+    #[error(transparent)]
+    ParseJson(#[from] serde_json::Error),
+    
+    #[error(transparent)]
+    Config(#[from] figment::Error),
+}
+
+pub type Result<T> = std::result::Result<T, Error>;