fix: remove unused export from SslBumpConfig interface in ssl-bump.ts

Agent-Logs-Url: https://github.com/github/gh-aw-firewall/sessions/e07586e3-c8a8-4e76-8158-807e9636123d

Co-authored-by: lpcox <15877973+lpcox@users.noreply.github.com>

Author: Copilot

src/ssl-bump.ts

@@ -36,7 +36,7 @@ export function chownRecursive(dirPath: string, uid: number, gid: number): void
 /**
  * Configuration for SSL Bump CA generation
  */
-export interface SslBumpConfig {
+interface SslBumpConfig {
   /** Working directory to store CA files */
   workDir: string;
   /** Common name for the CA certificate (default: 'AWF Session CA') */