🌉 feat: Integrate Helicone AI Gateway Provider (#10287)

* feat: integrate Helicone AI gateway provider

- Add Helicone provider support with automatic model fetching
- Implement custom API logic for Helicone model registry endpoint
- Enable access to 75+ models from multiple AI providers through Helicone gateway
- Add Helicone to supported providers list in README
- Include Helicone configuration in example YAML

* docs: add Helicone to supported providers list

* fix comments

* fixed backgroundless helicone icon asset

* removed unecessesary changes

* replace svg helicone image instead of png

packages/data-provider/src/config.ts

@@ -911,6 +911,7 @@ export enum KnownEndpoints {
   fireworks = 'fireworks',
   deepseek = 'deepseek',
   groq = 'groq',
+  helicone = 'helicone',
   huggingface = 'huggingface',
   mistral = 'mistral',
   mlx = 'mlx',
@@ -926,6 +927,7 @@ export enum KnownEndpoints {
 
 export enum FetchTokenConfig {
   openrouter = KnownEndpoints.openrouter,
+  helicone = KnownEndpoints.helicone
 }
 
 export const defaultEndpoints: EModelEndpoint[] = [
@@ -958,6 +960,7 @@ export const alternateName = {
   [KnownEndpoints.deepseek]: 'DeepSeek',
   [KnownEndpoints.xai]: 'xAI',
   [KnownEndpoints.vercel]: 'Vercel',
+  [KnownEndpoints.helicone]: 'Helicone',
 };
 
 const sharedOpenAIModels = [