fix: 修复 tsc 类型错误，通过 CI typecheck 阶段

- bridgeClient.ts: 添加缺失的 pairingInProgress 属性声明
- ink.tsx: 移除 5 处不再需要的 @ts-expect-error，保留 1 处 MACRO 比较
- client.ts: 添加缺失的 pendingSessionTarget 属性声明

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

packages/@ant/claude-for-chrome-mcp/src/bridgeClient.ts

@@ -71,6 +71,8 @@ export class BridgeClient implements SocketClient {
   private peerConnectedWaiters: Array<(arrived: boolean) => void> = []
   /** The request_id of the current pending pairing broadcast. */
   private pendingPairingRequestId: string | undefined
+  /** Whether a pairing broadcast is in progress (multiple extensions, no persisted selection). */
+  private pairingInProgress = false
   /** The deviceId from a previous persisted pairing. */
   private persistedDeviceId: string | undefined
   /** Resolve callback for a blocking switchBrowser() call. */