feat: launch Gemini 3 in Gemini CLI 🚀🚀🚀 (in main) (#13287)

Co-authored-by: Adam Weidman <65992621+adamfweidman@users.noreply.github.com>
Co-authored-by: Sehoon Shon <sshon@google.com>
Co-authored-by: Adib234 <30782825+Adib234@users.noreply.github.com>
Co-authored-by: Sandy Tao <sandytao520@icloud.com>
Co-authored-by: Abhi <43648792+abhipatel12@users.noreply.github.com>
Co-authored-by: Aishanee Shah <aishaneeshah@gmail.com>
Co-authored-by: gemini-cli-robot <gemini-cli-robot@google.com>
Co-authored-by: Gal Zahavi <38544478+galz10@users.noreply.github.com>
Co-authored-by: Jacob Richman <jacob314@gmail.com>
Co-authored-by: joshualitt <joshualitt@google.com>
Co-authored-by: Jenna Inouye <jinouye@google.com>

packages/core/src/utils/httpErrors.ts

@@ -0,0 +1,45 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export interface HttpError extends Error {
+  status?: number;
+}
+
+/**
+ * Extracts the HTTP status code from an error object.
+ * @param error The error object.
+ * @returns The HTTP status code, or undefined if not found.
+ */
+export function getErrorStatus(error: unknown): number | undefined {
+  if (typeof error === 'object' && error !== null) {
+    if ('status' in error && typeof error.status === 'number') {
+      return error.status;
+    }
+    // Check for error.response.status (common in axios errors)
+    if (
+      'response' in error &&
+      typeof (error as { response?: unknown }).response === 'object' &&
+      (error as { response?: unknown }).response !== null
+    ) {
+      const response = (
+        error as { response: { status?: unknown; headers?: unknown } }
+      ).response;
+      if ('status' in response && typeof response.status === 'number') {
+        return response.status;
+      }
+    }
+  }
+  return undefined;
+}
+
+export class ModelNotFoundError extends Error {
+  code: number;
+  constructor(message: string, code?: number) {
+    super(message);
+    this.name = 'ModelNotFoundError';
+    this.code = code ? code : 404;
+  }
+}