feat: add operationID to OpenIMApiError and implement toJSON for serialization (#79)

Author: OnYourMark-1995

src/errors/OpenIMApiError.ts

@@ -2,10 +2,23 @@ export class OpenIMApiError extends Error {
   name: string = 'OpenIMApiError';
   code: number;
   message: string;
+  operationID: string;
 
-  constructor(code: number, message: string) {
+  constructor(code: number, message: string, operationID: string) {
     super(message);
     this.code = code;
     this.message = message;
+    this.operationID = operationID;
+  }
+
+  // Error object's message and stack properties are non-enumerable by default.
+  // Override toJSON() to ensure the message property is properly serialized.
+  toJSON() {
+    return {
+      name: this.name,
+      operationID: this.operationID,
+      code: this.code,
+      message: this.message,
+    };
   }
 }

src/sdk.ts

@@ -113,7 +113,7 @@ class OpenIMSDK extends Emitter {
        * standardize error formats and make it easy for the business layer to determine
        * error sources based on the OpenIMApiError class.
        */
-      throw new OpenIMApiError(error.code, error.message);
+      throw new OpenIMApiError(error.code, error.message, args[args.length - 1]);
     }
   }