Fix warnings and update tracability

src/lib/utils/tauriCommandParams.test.ts

@@ -7,6 +7,7 @@
  *
  * @see https://v2.tauri.app/develop/calling-rust/
  */
+import { describe, it, expect } from 'vitest';
 
 describe("Tauri Command Parameter Names - Critical Pattern Test", () => {
   describe("All command parameters use camelCase (Tauri v2 auto-converts)", () => {

src/lib/utils/tauriRealCalls.test.ts

@@ -30,12 +30,12 @@ describe("Real production code - Tauri invoke calls", () => {
   });
 
   describe("playbackMode store - real calls", () => {
-    it("playPlayTracks should send repositoryHandle, NOT repository_handle", async () => {
+    it("playbackMode store should be importable and defined", async () => {
       const { playbackMode } = await import("../stores/playbackMode");
 
       try {
         expect(playbackMode).toBeDefined();
-        expect(playbackMode.playPlayTracks).toBeDefined();
+        expect(playbackMode.subscribe).toBeDefined();
       } catch (e) {
         // Store might have dependencies we can't mock, but at least we tried
       }
@@ -48,7 +48,7 @@ describe("Real production code - Tauri invoke calls", () => {
 
       try {
         expect(sessions).toBeDefined();
-        expect(sessions.sendCommand).toBeDefined();
+        expect(sessions.sendPlayPause).toBeDefined();
       } catch (e) {
         // Store might have dependencies we can't mock
       }