diff --git a/src/modules/rag-chat/rag-chat.service.ts b/src/modules/rag-chat/rag-chat.service.ts
index 0e0642b..1026ab4 100644
--- a/src/modules/rag-chat/rag-chat.service.ts
+++ b/src/modules/rag-chat/rag-chat.service.ts
@@ -94,8 +94,8 @@ export class RagChatService {
         data: {
           messageId: aiMsg.id,
           chunkId: c.id,
-          content: c.text.slice(0, 500),
-          score: c.score ?? 0,
+          sourceTitle: c.title ?? null,
+          excerptText: c.text.slice(0, 500),
         },
       });
     }
diff --git a/src/modules/users/users.service.ts b/src/modules/users/users.service.ts
index 3d058c2..dce5e20 100644
--- a/src/modules/users/users.service.ts
+++ b/src/modules/users/users.service.ts
@@ -76,7 +76,7 @@ export class UsersService {
       where: { userId },
       select: { sizeBytes: true, mimeType: true },
     });
-    const usedBytes = files.reduce((sum, f) => sum + f.sizeBytes, 0);
+    const usedBytes = files.reduce((sum, f) => sum + Number(f.sizeBytes), 0);
     const totalBytes = 1024 * 1024 * 1024; // 1GB hardcoded for now
     return { totalBytes, usedBytes, fileCount: files.length };
   }