fix!: Improve error handling when environment fetch fails. Minor type safety breaking changes

package.json

@@ -1,6 +1,6 @@
 {
   "name": "flagsmith-nodejs",
-  "version": "5.1.1",
+  "version": "6.0.0",
   "description": "Flagsmith lets you manage features flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features.",
   "main": "./build/cjs/index.js",
   "type": "module",

sdk/analytics.ts

@@ -1,6 +1,6 @@
 import { pino, Logger } from 'pino';
 import { Fetch } from "./types.js";
-import { Flags } from "./models.js";
+import { FlagsmithConfig } from "./types.js";
 
 export const ANALYTICS_ENDPOINT = './analytics/flags/';
 
@@ -21,17 +21,17 @@ export interface AnalyticsProcessorOptions {
     logger?: Logger;
     /** Custom {@link fetch} implementation to use for API requests. **/
     fetch?: Fetch
-    
+
     /** @deprecated Use {@link analyticsUrl} instead. **/
     baseApiUrl?: string;
 }
 
 /**
  * Tracks how often individual features are evaluated whenever {@link trackFeature} is called.
- * 
+ *
  * Analytics data is posted after {@link trackFeature} is called and at least {@link ANALYTICS_TIMER} seconds have
  * passed since the previous analytics API request was made (if any), or by calling {@link flush}.
- * 
+ *
  * Data will stay in memory indefinitely until it can be successfully posted to the API.
  * @see https://docs.flagsmith.com/advanced-use/flag-analytics.
  */
@@ -89,7 +89,7 @@ export class AnalyticsProcessor {
     /**
      * Track a single evaluation event for a feature.
      *
-     * This method is called whenever {@link Flags.isFeatureEnabled}, {@link Flags.getFeatureValue} or {@link Flags.getFlag} are called.
+     * @see FlagsmithConfig.enableAnalytics
      */
     trackFeature(featureName: string) {
         this.analyticsData[featureName] = (this.analyticsData[featureName] || 0) + 1;