Refactor Docker and Makefile configurations for improved build processes

- Updated docker-compose.tools.yml to mount source code at /src and set working directory for backend tools, ensuring proper Go module caching.
- Modified Dockerfile.tools to install the latest golangci-lint version compatible with Go 1.24 and adjusted working directory for build-time operations.
- Enhanced Makefile to build backend tools before running tests and linting, ensuring dependencies are up-to-date and improving overall workflow efficiency.
- Refactored test and handler files to include error handling for database operations, enhancing reliability and debugging capabilities.

internal/app/services/admin_test.go

@@ -234,7 +234,7 @@ func TestToggleMapHidden(t *testing.T) {
 	admin, _ := newTestAdmin(t)
 	ctx := context.Background()
 
-	admin.UpdateMap(ctx, 1, "world", false, false)
+	_ = admin.UpdateMap(ctx, 1, "world", false, false)
 
 	mi, err := admin.ToggleMapHidden(ctx, 1)
 	if err != nil {
@@ -257,19 +257,27 @@ func TestWipe(t *testing.T) {
 	admin, st := newTestAdmin(t)
 	ctx := context.Background()
 
-	st.Update(ctx, func(tx *bbolt.Tx) error {
-		st.PutGrid(tx, "g1", []byte("data"))
-		st.PutMap(tx, 1, []byte("data"))
-		st.PutTile(tx, 1, 0, "0_0", []byte("data"))
-		st.CreateMarkersBuckets(tx)
-		return nil
-	})
+	if err := st.Update(ctx, func(tx *bbolt.Tx) error {
+		if err := st.PutGrid(tx, "g1", []byte("data")); err != nil {
+			return err
+		}
+		if err := st.PutMap(tx, 1, []byte("data")); err != nil {
+			return err
+		}
+		if err := st.PutTile(tx, 1, 0, "0_0", []byte("data")); err != nil {
+			return err
+		}
+		_, _, err := st.CreateMarkersBuckets(tx)
+		return err
+	}); err != nil {
+		t.Fatal(err)
+	}
 
 	if err := admin.Wipe(ctx); err != nil {
 		t.Fatal(err)
 	}
 
-	st.View(ctx, func(tx *bbolt.Tx) error {
+	if err := st.View(ctx, func(tx *bbolt.Tx) error {
 		if st.GetGrid(tx, "g1") != nil {
 			t.Fatal("expected grids wiped")
 		}
@@ -283,7 +291,9 @@ func TestWipe(t *testing.T) {
 			t.Fatal("expected markers wiped")
 		}
 		return nil
-	})
+	}); err != nil {
+		t.Fatal(err)
+	}
 }
 
 func TestGetMap_NotFound(t *testing.T) {