refactor: enhance hypercert retrieval in SalesResolver

- Updated the hypercert retrieval process to include fetching metadata alongside the hypercert data.
- Improved the return structure to include both hypercert and its associated metadata.

Author: Jipperism

src/services/graphql/resolvers/salesResolver.ts

@@ -100,13 +100,21 @@ class SalesResolver {
     }
 
     try {
-      return await this.hypercertsService.getHypercert({
-        where: {
-          hypercert_id: {
-            eq: sale.hypercert_id,
+      const [hypercert, metadata] = await Promise.all([
+        this.hypercertsService.getHypercert({
+          where: {
+            hypercert_id: { eq: sale.hypercert_id },
           },
-        },
-      });
+        }),
+        this.hypercertsService.getHypercertMetadata({
+          hypercert_id: sale.hypercert_id,
+        }),
+      ]);
+
+      return {
+        ...hypercert,
+        metadata: metadata || null,
+      };
     } catch (e) {
       console.error(
         `[SalesResolver::hypercert] Error fetching hypercert: ${(e as Error).message}`,