Disallow and suppress misused spread operator. (#23294)

packages/core/src/services/chatCompressionService.ts

@@ -196,6 +196,7 @@ async function truncateHistoryToBudget(
 
               newParts.unshift({
                 functionResponse: {
+                  // eslint-disable-next-line @typescript-eslint/no-misused-spread
                   ...part.functionResponse,
                   response: { output: truncatedMessage },
                 },

packages/core/src/services/toolOutputMaskingService.ts

@@ -226,6 +226,7 @@ export class ToolOutputMaskingService {
       const maskedPart = {
         ...part,
         functionResponse: {
+          // eslint-disable-next-line @typescript-eslint/no-misused-spread
           ...part.functionResponse,
           response: { output: maskedSnippet },
         },