fix(@angular/ssr): export RESPONSE_INIT, REQUEST, and REQUEST_CONTEXT tokens

This commit exports that the `RESPONSE_INIT`, `REQUEST`, and `REQUEST_CONTEXT` tokens.

Author: alan-agius4

goldens/public-api/angular/ssr/index.api.md

@@ -5,6 +5,7 @@
 ```ts
 
 import { EnvironmentProviders } from '@angular/core';
+import { InjectionToken } from '@angular/core';
 
 // @public
 export class AngularAppEngine {
@@ -34,6 +35,15 @@ export enum RenderMode {
     Server = 1
 }
 
+// @public
+export const REQUEST: InjectionToken<Request>;
+
+// @public
+export const REQUEST_CONTEXT: InjectionToken<unknown>;
+
+// @public
+export const RESPONSE_INIT: InjectionToken<ResponseInit>;
+
 // @public
 export type ServerRoute = ServerRouteAppShell | ServerRouteClient | ServerRoutePrerender | ServerRoutePrerenderWithParams | ServerRouteServer;
 

packages/angular/ssr/public_api.ts

@@ -17,3 +17,5 @@ export {
   provideServerRoutesConfig,
   RenderMode,
 } from './src/routes/route-config';
+
+export { REQUEST, RESPONSE_INIT, REQUEST_CONTEXT } from './src/tokens';

packages/angular/ssr/src/tokens.ts

@@ -10,15 +10,18 @@ import { InjectionToken } from '@angular/core';
 
 /**
  * Injection token for the current request.
+ * @developerPreview
  */
 export const REQUEST = new InjectionToken<Request>('REQUEST');
 
 /**
  * Injection token for the response initialization options.
+ * @developerPreview
  */
 export const RESPONSE_INIT = new InjectionToken<ResponseInit>('RESPONSE_INIT');
 
 /**
  * Injection token for additional request context.
+ * @developerPreview
  */
 export const REQUEST_CONTEXT = new InjectionToken<unknown>('REQUEST_CONTEXT');