Add integration tests for 'tiger service logs'

Author: nathanjcochran

internal/tiger/cmd/integration_test.go

@@ -272,6 +272,33 @@ func TestServiceLifecycleIntegration(t *testing.T) {
 		t.Logf("Service status: %v", service.Status)
 	})
 
+	t.Run("ServiceLogs", func(t *testing.T) {
+		if serviceID == "" {
+			t.Skip("No service ID available from create test")
+		}
+
+		t.Logf("Fetching logs for service: %s", serviceID)
+
+		output, err := executeIntegrationCommand(
+			t.Context(),
+			"service", "logs", serviceID,
+		)
+
+		if err != nil {
+			t.Fatalf("Service logs failed: %v\nOutput: %s", err, output)
+		}
+
+		// Verify at least one expected log line is present
+		// PostgreSQL services should have logs about starting the database
+		if !strings.Contains(output, "starting PostgreSQL") &&
+			!strings.Contains(output, "database system is ready") &&
+			!strings.Contains(output, "PostgreSQL") {
+			t.Errorf("Expected to see PostgreSQL-related log lines in output: %s", output)
+		}
+
+		t.Logf("✅ Service logs fetched successfully")
+	})
+
 	t.Run("DatabasePsqlCommand_OriginalPassword", func(t *testing.T) {
 		if serviceID == "" {
 			t.Skip("No service ID available from create test")