implement session via cloudflare kv

app/src/app.d.ts

@@ -1,9 +1,13 @@
+import { KVNamespace } from '@cloudflare/workers-types';
 // See https://svelte.dev/docs/kit/types#app.d.ts
 // for information about these interfaces
 declare global {
 	namespace App {
         interface Platform {
-            env: Env
+            env: {
+                GH_MEDIA: R2Bucket;
+				GH_SESSIONS: KVNamespace;
+            };
             cf: CfProperties
             ctx: ExecutionContext
         }