added get runtime api

added context to the runtime in "advanced" mode

packages/integrations/cloudflare/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@astrojs/cloudflare",
-  "description": "Deploy your site to cloudflare pages functions",
+  "description": "Deploy your site to cloudflare workers or cloudflare pages",
   "version": "3.1.0",
   "type": "module",
   "types": "./dist/index.d.ts",
@@ -19,6 +19,7 @@
   "homepage": "https://docs.astro.build/en/guides/integrations-guide/cloudflare/",
   "exports": {
     ".": "./dist/index.js",
+    "./runtime": "./dist/runtime.js",
     "./server.advanced.js": "./dist/server.advanced.js",
     "./server.directory.js": "./dist/server.directory.js",
     "./package.json": "./package.json"

packages/integrations/cloudflare/src/runtime.ts

@@ -0,0 +1,7 @@
+
+export function getRuntime(request: Request): any {
+  return Reflect.get(
+    request,
+    Symbol.for('runtime')
+  );
+}

packages/integrations/cloudflare/src/server.advanced.ts

@@ -11,7 +11,8 @@ type Env = {
 export function createExports(manifest: SSRManifest) {
 	const app = new App(manifest, false);
 
-	const fetch = async (request: Request, env: Env) => {
+	const fetch = async (request: Request, env: Env, context: any) => {
+
 		const { origin, pathname } = new URL(request.url);
     env.name = "cloudflare";
 
@@ -31,7 +32,7 @@ export function createExports(manifest: SSRManifest) {
       Reflect.set(
         request,
         Symbol.for('runtime'),
-        env
+        { env, ...context }
       );
 			let response = await app.render(request, routeData);