Initialize web application via create-cloudflare CLI

Details:
  C3 = create-cloudflare@2.66.4
  project name = space-stream
  framework = svelte
  framework cli = sv@0.12.4
  package manager = bun@1.3.11
  wrangler = wrangler@4.81.1
  git = 2.53.0

src/app.d.ts

@@ -0,0 +1,13 @@
+// See https://svelte.dev/docs/kit/types#app.d.ts
+// for information about these interfaces
+declare global {
+	namespace App {
+        interface Platform {
+            env: Env;
+            cf: CfProperties;
+            ctx: ExecutionContext;
+        }
+    }
+}
+
+export {};