fix(core): Improve logging and error handling by introducing custom error classes and a global logging interface while refactoring network diagnostics methods.

ts/errors.ts

@@ -0,0 +1,20 @@
+/**
+ * Custom error classes for network operations
+ */
+export class NetworkError extends Error {
+  public code?: string;
+  constructor(message?: string, code?: string) {
+    super(message);
+    this.name = 'NetworkError';
+    this.code = code;
+    Object.setPrototypeOf(this, new.target.prototype);
+  }
+}
+
+export class TimeoutError extends NetworkError {
+  constructor(message?: string) {
+    super(message, 'ETIMEOUT');
+    this.name = 'TimeoutError';
+    Object.setPrototypeOf(this, new.target.prototype);
+  }
+}