Refactor IDE client state management, improve user-facing error messages, and add logging of connection events (#5591)

Co-authored-by: matt korwel <matt.korwel@gmail.com>

packages/core/src/config/config.test.ts

@@ -18,7 +18,6 @@ import {
 } from '../core/contentGenerator.js';
 import { GeminiClient } from '../core/client.js';
 import { GitService } from '../services/gitService.js';
-import { IdeClient } from '../ide/ide-client.js';
 
 vi.mock('fs', async (importOriginal) => {
   const actual = await importOriginal<typeof import('fs')>();
@@ -120,7 +119,6 @@ describe('Server Config (config.ts)', () => {
     telemetry: TELEMETRY_SETTINGS,
     sessionId: SESSION_ID,
     model: MODEL,
-    ideClient: IdeClient.getInstance(false),
   };
 
   beforeEach(() => {