🛠️ Add default header management methods to API client

code/websites/pokedex.online/src/utilities/api-client.js

@@ -191,7 +191,16 @@ export function createApiClient(config = {}) {
         body: JSON.stringify(data)
       }),
     delete: (url, options = {}) =>
-      request(url, { ...options, method: 'DELETE' })
+      request(url, { ...options, method: 'DELETE' }),
+    
+    // Header management
+    setDefaultHeader: (name, value) => {
+      defaultHeaders[name] = value;
+    },
+    removeDefaultHeader: (name) => {
+      delete defaultHeaders[name];
+    },
+    getDefaultHeaders: () => ({ ...defaultHeaders })
   };
 }