feat: add endpoints and logic for retrieving warehouse space usage and status distribution, including SQL queries, models, and service integration

internal/models/dashboard_model.go

@@ -76,3 +76,16 @@ type TopExportedComponent struct {
 	ComponentTypeName string `json:"componentTypeName"`
 	TotalExported     int64  `json:"totalExported"`
 }
+
+type StatusDistributionItem struct {
+	Status        string `json:"status"`
+	Count         int64  `json:"count"`
+	TotalQuantity int64  `json:"totalQuantity"`
+}
+
+type SpaceUsageItem struct {
+	Warehouse       string `json:"warehouse"`
+	Room            string `json:"room"`
+	TotalContainers int64  `json:"totalContainers"`
+	UsedContainers  int64  `json:"usedContainers"`
+}