Remove default MCP transport error handler

Let consuming projects decide how to handle transport errors by not
setting server.onerror by default. They can assign server.onerror
after instantiation if they need custom handling (logging, Sentry, etc).

Made-with: Cursor

Author: agtraveso

src/server.ts

@@ -180,7 +180,6 @@ class YepCodeMcpServer extends Server {
     this.runCodeCleanup = runCodeCleanup;
     this.skipCodingRules = skipCodingRules;
     this.setupHandlers();
-    this.setupErrorHandling();
 
     try {
       this.yepCodeRun = new YepCodeRun(config);
@@ -206,12 +205,6 @@ class YepCodeMcpServer extends Server {
     }
   }
 
-  private setupErrorHandling(): void {
-    this.onerror = (error) => {
-      this.logger.error("[MCP Error]", error);
-    };
-  }
-
   private setupHandlers(): void {
     this.setupToolHandlers();
     this.setupResourceHandlers();