feat: add role-specific statistics to telemetry and UI (cont. #15234) (#18824)

Co-authored-by: Yuna Seol <yunaseol@google.com>

packages/cli/src/zed-integration/zedIntegration.ts

@@ -35,6 +35,7 @@ import {
   startupProfiler,
   Kind,
   partListUnionToString,
+  LlmRole,
 } from '@google/gemini-cli-core';
 import * as acp from '@agentclientprotocol/sdk';
 import { AcpFileSystemService } from './fileSystemService.js';
@@ -493,6 +494,7 @@ export class Session {
           nextMessage?.parts ?? [],
           promptId,
           pendingSend.signal,
+          LlmRole.MAIN,
         );
         nextMessage = null;