adapter(cloudflare): removed durable mode, added withPlatformProxy (#233)

* removed `durable` mode as it requires an import from "cloudflare:" that often fails in non-cf environments

* remove worker configuration types

* add `withPlatformProxy`

* withPlatformProxy: make configuration optional

app/build.ts

@@ -256,7 +256,11 @@ async function buildAdapters() {
       ),
       tsup.build(baseConfig("astro")),
       tsup.build(baseConfig("aws")),
-      tsup.build(baseConfig("cloudflare")),
+      tsup.build(
+         baseConfig("cloudflare", {
+            external: ["wrangler", "node:process"],
+         }),
+      ),
 
       tsup.build({
          ...baseConfig("vite"),