feat: Add labeling template (#72)

* feat: Enhance annotation module with template management and validation

- Added DatasetMappingCreateRequest and DatasetMappingUpdateRequest schemas to handle dataset mapping requests with camelCase and snake_case support.
- Introduced Annotation Template schemas including CreateAnnotationTemplateRequest, UpdateAnnotationTemplateRequest, and AnnotationTemplateResponse for managing annotation templates.
- Implemented AnnotationTemplateService for creating, updating, retrieving, and deleting annotation templates, including validation of configurations and XML generation.
- Added utility class LabelStudioConfigValidator for validating Label Studio configurations and XML formats.
- Updated database schema for annotation templates and labeling projects to include new fields and constraints.
- Seeded initial annotation templates for various use cases including image classification, object detection, and text classification.

* feat: Enhance TemplateForm with improved validation and dynamic field rendering; update LabelStudio config validation for camelCase support

* feat: Update docker-compose.yml to mark datamate dataset volume and network as external

frontend/src/pages/DataAnnotation/annotation.const.tsx

@@ -51,8 +51,9 @@ export function mapAnnotationTask(task: any) {
     projId: labelingProjId,
     name: task.name,
     description: task.description || "",
-    createdAt: task.createdAt,
-    updatedAt: task.updatedAt,
+    datasetName: task.datasetName || task.dataset_name || "-",
+    createdAt: task.createdAt || task.created_at || "-",
+    updatedAt: task.updatedAt || task.updated_at || "-",
     icon: <StickyNote />,
     iconColor: "bg-blue-100",
     status: {