Refactor Tauri crate into a library and add OS version header

src-tauri/tests/domain_tests.rs

@@ -1,13 +1,8 @@
-#[path = "../src/models.rs"]
-mod models;
-#[path = "../src/validation.rs"]
-mod validation;
-
-use models::{
+use proxywarden_lib::models::{
     ComponentId, ProfileInput, ProfileItemInput, ProfileItemType, Protocol, ProxyProtocol,
     TargetInput, TargetKind,
 };
-use validation::{normalize_profile, normalize_target};
+use proxywarden_lib::validation::{normalize_profile, normalize_target};
 
 #[test]
 fn normalizes_profile_source_items() {