fix: set created_by/updated_by fields and resolve user names

- Set user_id in CreateDocumentRequest and UpdateDocumentRequest
- Resolve user names (_created_by_name, _updated_by_name) when listing documents
- User IDs are now tracked correctly for document ownership

webserver/src/http_server.cpp

@@ -3498,6 +3498,7 @@ void HttpServer::HandleCreateDocument(const httplib::Request& req, httplib::Resp
         CreateDocumentRequest create_req;
         create_req.workspace_id = workspace_id;
         create_req.collection = collection_name;
+        create_req.user_id = auth_user->user_id;  // Set user for _created_by tracking
 
         if (json.contains("id") && json["id"].is_string()) {
             create_req.id = json["id"].get<std::string>();
@@ -3628,11 +3629,26 @@ void HttpServer::HandleListDocuments(const httplib::Request& req, httplib::Respo
 
         nlohmann::json docs_array = nlohmann::json::array();
         for (const auto& doc : result.documents) {
+            // Resolve user names for _created_by and _updated_by
+            nlohmann::json enriched_data = doc.data;
+            if (doc.data.contains("_created_by") && doc.data["_created_by"].is_string()) {
+                std::string created_by_name = ResolveUserName(doc.data["_created_by"].get<std::string>());
+                if (!created_by_name.empty()) {
+                    enriched_data["_created_by_name"] = created_by_name;
+                }
+            }
+            if (doc.data.contains("_updated_by") && doc.data["_updated_by"].is_string()) {
+                std::string updated_by_name = ResolveUserName(doc.data["_updated_by"].get<std::string>());
+                if (!updated_by_name.empty()) {
+                    enriched_data["_updated_by_name"] = updated_by_name;
+                }
+            }
+
             nlohmann::json doc_json = {
                 {"id", doc.id},
                 {"collection", doc.collection},
                 {"workspace_id", doc.workspace_id},
-                {"data", doc.data},
+                {"data", enriched_data},
                 {"created_at", doc.created_at},
                 {"updated_at", doc.updated_at},
                 {"version", doc.version}
@@ -3774,6 +3790,7 @@ void HttpServer::HandleUpdateDocument(const httplib::Request& req, httplib::Resp
         update_req.workspace_id = workspace_id;
         update_req.collection = collection_name;
         update_req.id = document_id;
+        update_req.user_id = auth_user->user_id;  // Set user for _updated_by tracking
 
         if (json.contains("data") && json["data"].is_object()) {
             update_req.data = json["data"];