fix(tests): update worker tests for API changes and error handling

- Update ListMediaItems calls to include required Limit and Offset parameters
- Change Enqueue() to EnqueueJob() to match updated worker API
- Add error assertions for job enqueue operations with descriptive messages
- Ensure all database queries use proper pagination parameters

This ensures tests properly validate error conditions and use the latest worker service API.

cmd/server/tests/worker_test.go

@@ -107,7 +107,10 @@ func TestWorker_DirectoryScanJob(t *testing.T) {
 
 	// Check that items were created in database
 	ctx := context.Background()
-	items, err := setup.DB.ListMediaItems(ctx, database.ListMediaItemsParams{})
+	items, err := setup.DB.ListMediaItems(ctx, database.ListMediaItemsParams{
+		Limit:  1000,
+		Offset: 0,
+	})
 	require.NoError(t, err)
 
 	// Should have at least 3 items (our test files)
@@ -161,7 +164,8 @@ func TestWorker_SetFoldersJob(t *testing.T) {
 		Status: services.JobStatusPending,
 	}
 
-	services.WorkerInstance.Enqueue(job)
+	err = services.WorkerInstance.EnqueueJob(job)
+	require.NoError(t, err, "Failed to enqueue set folders job")
 
 	// Wait for job to process
 	time.Sleep(1 * time.Second)
@@ -228,14 +232,18 @@ func TestWorker_ConcurrentJobs(t *testing.T) {
 			},
 			Status: services.JobStatusPending,
 		}
-		services.WorkerInstance.Enqueue(job)
+		err = services.WorkerInstance.EnqueueJob(job)
+		require.NoError(t, err, "Failed to enqueue set folders job")
 	}
 
 	// Wait for all jobs to process
 	time.Sleep(3 * time.Second)
 
 	// Verify all directories were processed
-	allItems, err := setup.DB.ListMediaItems(ctx, database.ListMediaItemsParams{})
+	allItems, err := setup.DB.ListMediaItems(ctx, database.ListMediaItemsParams{
+		Limit:  1000,
+		Offset: 0,
+	})
 	require.NoError(t, err)
 	assert.NotEmpty(t, allItems, "Should have media items from concurrent jobs")
 }
@@ -278,7 +286,8 @@ func TestWorker_JobStatusTracking(t *testing.T) {
 		Status: services.JobStatusPending,
 	}
 
-	services.WorkerInstance.Enqueue(job)
+	err = services.WorkerInstance.EnqueueJob(job)
+	require.NoError(t, err, "Failed to enqueue set folders job")
 
 	// Poll job status
 	var finalStatus string