hotfix-feat(dataset): implement file upload with validation and error handling

- Implemented file upload functionality for datasets using multipart requests.
- Added file size and type validation using VineJS.
- Added file name length validation.
- Added file scan to remove infected files.
- Implemented aggregated upload limit to prevent exceeding the server's capacity.
- Added error handling for file upload failures, including temporary file cleanup.
- Updated the `DatasetController` to handle file uploads, validation, and database transactions.
- Updated the `bodyparser.ts` config to process the file upload manually.
- Updated the `api.ts` routes to fetch the statistic data.
- Updated the `main.ts` store to fetch the statistic data.
- Updated the `Dashboard.vue` to display the submitters only for administrator role.
- Updated the `CardBoxWidget.vue` to display the submitters.
- Updated the `ServerError.vue` to use the LayoutGuest.vue.
- Updated the `AuthController.ts` and `start/routes.ts` to handle the database connection errors.
- Updated the `app/exceptions/handler.ts` to handle the database connection errors.
- Updated the `package.json` to use the correct version of the `@adonisjs/bodyparser`.

app/exceptions/db_handler.ts

@@ -0,0 +1,43 @@
+// import { Exception } from '@adonisjs/core/exceptions'
+import { HttpContext, ExceptionHandler } from '@adonisjs/core/http';
+
+export default class DbHandlerException extends ExceptionHandler {
+    // constructor() {
+    //   super(Logger)
+    // }
+
+    async handle(error: any, ctx: HttpContext) {
+        // Check for AggregateError type
+        if (error.type === 'AggregateError' && error.aggregateErrors) {
+            const dbErrors = error.aggregateErrors.some((err: any) => err.code === 'ECONNREFUSED' && err.port === 5432);
+
+            if (dbErrors) {
+                return ctx.response.status(503).json({
+                    status: 'error',
+                    message: 'PostgreSQL database connection failed. Please ensure the database service is running.',
+                    details: {
+                        code: error.code,
+                        type: error.type,
+                        ports: error.aggregateErrors.map((err: any) => ({
+                            port: err.port,
+                            address: err.address,
+                        })),
+                    },
+                });
+            }
+        }
+
+        // Handle simple ECONNREFUSED errors
+        if (error.code === 'ECONNREFUSED') {
+            return ctx.response.status(503).json({
+                status: 'error',
+                message: 'Database connection failed. Please ensure PostgreSQL is running.',
+                code: error.code,
+            });
+        }
+
+        return super.handle(error, ctx);
+    }
+
+    static status = 500;
+}