feat: basic project restructure

src/infrastructure/user.rs

@@ -0,0 +1,21 @@
+use serde::{Deserialize, Serialize};
+
+/// Wraps a `String` to store the sub from KC
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct KeyCloakSub(pub String);
+
+/// database entity to store our users
+#[derive(Debug, Serialize, Deserialize)]
+pub struct UserEntity {
+    /// Our unique id of the user, for now this is just the mongodb assigned id
+    pub _id: mongodb::bson::oid::ObjectId,
+
+    /// Time the user was created
+    pub created_at: mongodb::bson::DateTime,
+
+    /// KC subject element of the ID Token
+    pub kc_sub: KeyCloakSub,
+
+    /// User email as provided during signup with the identity provider
+    pub email: String,
+}