fix(core): unused blobs query (#10350)

The default limit is 100.

packages/frontend/core/src/modules/blob-management/entity/unused-blobs.ts

@@ -121,6 +121,11 @@ export class UnusedBlobs extends Entity {
   }
 
   private async getUsedBlobs(): Promise<string[]> {
+    const batchSize = 100;
+    let offset = 0;
+    const unusedBlobKeys: string[] = [];
+
+    while (true) {
       const result = await this.docsSearchService.indexer.blockIndex.aggregate(
         {
           type: 'boolean',
@@ -132,9 +137,29 @@ export class UnusedBlobs extends Entity {
             },
           ],
         },
-      'blob'
+        'blob',
+        {
+          pagination: {
+            limit: batchSize,
+            skip: offset,
+          },
+        }
       );
-    return result.buckets.map(bucket => bucket.key);
+
+      if (!result.buckets.length) {
+        break;
+      }
+
+      unusedBlobKeys.push(...result.buckets.map(bucket => bucket.key));
+      offset += batchSize;
+
+      // If we got less results than the batch size, we've reached the end
+      if (result.buckets.length < batchSize) {
+        break;
+      }
+    }
+
+    return unusedBlobKeys;
   }
 
   async hydrateBlob(